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Tamil Nadu Board of Secondary EducationHSC Commerce Class 12

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board chapter 2 - Integral Calculus – 1 [Latest edition]

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Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board chapter 2 - Integral Calculus – 1 - Shaalaa.com
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Solutions for Chapter 2: Integral Calculus – 1

Below listed, you can find solutions for Chapter 2 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Business Mathematics and Statistics [English] Class 12 TN Board.


Exercise 2.1Exercise 2.2Exercise 2.3Exercise 2.4Exercise 2.5Exercise 2.6Exercise 2.7Exercise 2.8Exercise 2.9Exercise 2.10Exercise 2.11Exercise 2.12Miscellaneous problems
Exercise 2.1 [Page 30]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.1 [Page 30]

1Page 30

Integrate the following with respect to x.

`sqrt(3x + 5)`

2Page 30

Integrate the following with respect to x.

`(9x^2 - 4/x^2)^2`

3Page 30

Integrate the following with respect to x.

(3 + x)(2 – 5x)

4Page 30

Integrate the following with respect to x.

`sqrt(x)(x^3 - 2x + 3)`

5Page 30

Integrate the following with respect to x.

`(8x + 13)/sqrt(4x + 7)`

6Page 30

Integrate the following with respect to x.

`1/(sqrt(x + 1) + sqrt(x - 1))`

7Page 30

Integrate the following with respect to x.

If f'(x) = x + b, f(1) = 5 and f(2) = 13, then find f(x)

8Page 30

Integrate the following with respect to x.

If f'(x) = 8x3 – 2x and f(2) = 8, then find f(x)

Exercise 2.2 [Page 31]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.2 [Page 31]

1Page 31

Integrate the following with respect to x.

`(sqrt(2x) - 1/sqrt(2x))^2`

2Page 31

Integrate the following with respect to x.

`(x^4 - x^2 + 2)/(x - 1)`

3Page 31

Integrate the following with respect to x.

`x^3/(x + 2)`

4Page 31

Integrate the following with respect to x.

`(x^3 + 3x^2 - 7x + 11)/(x + 5)`

5Page 31

Integrate the following with respect to x.

`(3x + 2)/((x - 2)(x - 3))`

6Page 31

Integrate the following with respect to x.

`(4x^2 + 2x + 6)/((x + 1)^2(x - 3))`

7Page 31

Integrate the following with respect to x.

`(3x^2 - 2x + 5)/((x - 1)(x^2 + 5))`

8Page 31

Integrate the following with respect to x.

If f'(x) = `1/x` and f(1) = `pi/4`, then find f(x)

Exercise 2.3 [Page 32]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.3 [Page 32]

1Page 32

Integrate the following with respect to x.

`"e"^(xlog"a") + "e"^("a"log"a") - "e"^("n"logx)`

2Page 32

Integrate the following with respect to x.

`("a"^x - "e"^(xlog"b"))/("e"^(x log "a") "b"^x)`

3Page 32

Integrate the following with respect to x.

`("e"^x + 1)^2 "e"^x`

4Page 32

Integrate the following with respect to x.

`("e"^(3x) - "e"^(-3x))/"e"^x`

5Page 32

Integrate the following with respect to x.

`("e"^(3x) +"e"^(5x))/("e"^x + "e"^-x)`

6Page 32

Integrate the following with respect to x.

`[1 - 1/2]"e"^((x + 1/x))`

7Page 32

Integrate the following with respect to x.

`1/(x(log x)^2`

8Page 32

Integrate the following with respect to x.

If f'(x) = ex and f(0) = 2, then find f(x)

Exercise 2.4 [Page 33]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.4 [Page 33]

1Page 33

Integrate the following with respect to x.

2 cos x – 3 sin x + 4 sec2x – 5 cosec2x

2Page 33

Integrate the following with respect to x.

sin3x

3Page 33

Integrate the following with respect to x.

`(cos 2x + 2sin^2x)/(cos^2x)`

4Page 33

Integrate the following with respect to x.

`1/(sin^2x cos^2x) ["Hint:" sin^2x + cos^2x = 1]`

5Page 33

Integrate the following with respect to x.

`sqrt(1 - sin 2x)`

Exercise 2.5 [Page 35]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.5 [Page 35]

1Page 35

Integrate the following with respect to x.

xe–x 

2Page 35

Integrate the following with respect to x.

x3e3x

3Page 35

Integrate the following with respect to x.

log x

4Page 35

Integrate the following with respect to x.

x log x

5Page 35

Integrate the following with respect to x.

xn log x

6Page 35

Integrate the following with respect to x.

`x^5  "e"^x`

Exercise 2.6 [Page 38]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.6 [Page 38]

1Page 38

Integrate the following with respect to x.

`(2x + 5)/(x^2 + 5x - 7)`

2Page 38

Integrate the following with respect to x.

`("e"^(3logx))/(x^4 + 1)`

3Page 38

Integrate the following with respect to x.

`"e"^(2x)/("e"^(2x) - 2)`

4Page 38

Integrate the following with respect to x.

`(log x)^3/x`

5Page 38

Integrate the following with respect to x.

`(6x + 7)/sqrt(3x^2 + 7x - 1)`

6Page 38

Integrate the following with respect to x.

`(4x + 2) sqrt(x^2 + x + 1)`

7Page 38

Integrate the following with respect to x.

x8(1 + x9)5 

8Page 38

Integrate the following with respect to x.

`(x^("e" - 1) + "e"^(x - 1))/(x^"e" + "e"^x)`

9Page 38

Integrate the following with respect to x

`1/(x log x)`

10Page 38

Integrate the following with respect to x.

`x/(2x^4 - 3x^2 - 2)`

11Page 38

Integrate the following with respect to x.

ex(1 + x) log(xex)

12Page 38

Integrate the following with respect to x.

`1/(x^2(x^2 + 1))`

13Page 38

Integrate the following with respect to x.

`"e"^x [1/x^2 - 2/x^3]`

14Page 38

Integrate the following with respect to x.

`"e"^x [(x - 1)/(x + 1)^3]`

15Page 38

Integrate the following with respect to x.

`"e"^(3x) [(3x - 1)/(9x^2)]`

Exercise 2.7 [Page 42]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.7 [Page 42]

1Page 42

Integrate the following with respect to x.

`1/(9 - 16x^2)`

2Page 42

Integrate the following with respect to x.

`1/(9 - 8x - x^2)`

3Page 42

Integrate the following with respect to x.

`1/(2x^2 - 9)`

4Page 42

Integrate the following with respect to x.

`1/(x^2 - x - 2)`

5Page 42

Integrate the following with respect to x.

`1/(x^2 + 3x + 2)`

6Page 42

Integrate the following with respect to x.

`1/(2x^2 + 6x - 8)`

7Page 42

Integrate the following with respect to x.

`"e"^x/("e"^(2x) - 9)`

8Page 42

Integrate the following with respect to x.

`1/sqrt(9x^2 - 7)`

9Page 42

Integrate the following with respect to x.

`1/sqrt(x^2 + 6x + 13)`

10Page 42

Integrate the following with respect to x.

`1/sqrt(x^2 - 3x + 2)`

11Page 42

Integrate the following with respect to x.

`x^3/sqrt(x^8 - 1)`

12Page 42

Integrate the following with respect to x.

`sqrt(1 + x + x^2)`

13Page 42

Integrate the following with respect to x.

`sqrt(x^2 - 2)`

14Page 42

Integrate the following with respect to x.

`sqrt(4x^2 - 5)`

15Page 42

Integrate the following with respect to x.

`sqrt(2x^2 + 4x + 1)`

16Page 42

Integrate the following with respect to x.

`1/(x + sqrt(x^2 - 1)`

Exercise 2.8 [Page 47]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.8 [Page 47]

I.1Page 47

Using second fundamental theorem, evaluate the following:

`int_0^1 "e"^(2x)  "d"x`

I.2Page 47

Using second fundamental theorem, evaluate the following:

`int_0^(1/4) sqrt(1 - 4)  "d"x`

I.3Page 47

Using second fundamental theorem, evaluate the following:

`int_1^2 (x "d"x)/(x^2 + 1)`

I.4Page 47

Using second fundamental theorem, evaluate the following:

`int_0^3 ("e"^x "d"x)/(1 + "e"^x)`

I.5Page 47

Using second fundamental theorem, evaluate the following:

`int_0^1 x"e"^(x^2)  "d"x`

I.6Page 47

Using second fundamental theorem, evaluate the following:

`int_1^"e" ("d"x)/(x(1 + logx)^3`

I.7Page 47

Using second fundamental theorem, evaluate the following:

`int_(-1)^1 (2x + 3)/(x^2 + 3x + 7)  "d"x`

I.8Page 47

Using second fundamental theorem, evaluate the following:

`int_0^(pi/2) sqrt(1 + cos x)  "d"x`

I.9Page 47

Using second fundamental theorem, evaluate the following:

`int_1^2 (x - 1)/x^2  "d"x`

II. 1Page 47

Evaluate the following:

`int_1^4` f(x) dx where f(x) = `{{:(4x + 3",", 1 ≤ x ≤ 2),(3x + 5",", 2 < x ≤ 4):}`

II.2Page 47

Evaluate the following:

`int_0^2 "f"(x)  "d"x` where f(x) = `{{:(3 - 2x - x^2",", x ≤ 1),(x^2 + 2x - 3",", 1 < x ≤ 2):}`

II.3Page 47

Evaluate the following:

`int_(-1)^1 "f"(x)  "d"x` where f(x) = `{{:(x",", x ≥ 0),(-x",", x  < 0):}`

II.4Page 47

Evaluate the following:

f(x) = `{{:("c"x",", 0 < x < 1),(0",",  "otherwise"):}` Find 'c" if `int_0^1 "f"(x)  "d"x` = 2

Exercise 2.9 [Page 50]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.9 [Page 50]

1Page 50

Evaluate the following using properties of definite integral:

`int_(- pi/4)^(pi/4) x^3 cos^3 x  "d"x`

2Page 50

Evaluate the following using properties of definite integral:

`int_(- pi/2)^(pi/2) sin^2theta  "d"theta`

3Page 50

Evaluate the following using properties of definite integral:

`int_(-1)^1 log ((2 - x)/(2 + x))  "d"x`

4Page 50

Evaluate the following using properties of definite integral:

`int_0^(i/2) (sin^7x)/(sin^7x + cos^7x)  "d"x`

5Page 50

Evaluate the following using properties of definite integral:

`int_0^1 log (1/x - 1)  "d"x`

6Page 50

Evaluate the following using properties of definite integral:

`int_0^1 x/((1 - x)^(3/4))  "d"x`

Exercise 2.10 [Page 51]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.10 [Page 51]

1Page 51

Evaluate the following:

Γ(4)

1. (ii)Page 51

Evaluate the following:

`Γ (9/2)`

1. (iii)Page 51

Evaluate the following:

`int_0^oo "e"^(-mx) x^6 "d"x`

1. (iv)Page 51

Evaluate the following:

`int_0^oo "e"^(-4x) x^4  "d"x`

1. (v)Page 51

Evaluate the following:

`int_0^oo "e"^(- x/2) x^5  "d"x`

2Page 51

If f(x) = `{{:(x^2"e"^(-2x)",", x ≥ 0),(0",", "otherwise"):}`, then evaluate `int_0^oo "f"(x) "d"x`

Exercise 2.11 [Page 53]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.11 [Page 53]

1Page 53

Evaluate the following integrals as the limit of the sum:

`int_0^1 (x + 4)  "d"x`

2Page 53

Evaluate the following integrals as the limit of the sum:

`int_1^3 x  "d"x`

3Page 53

Evaluate the following integrals as the limit of the sum:

`int_1^3 (2x + 3)  "d"x`

4Page 53

Evaluate the following integrals as the limit of the sum:

`int_0^1 x^2  "d"x`

Exercise 2.12 [Pages 53 - 55]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Exercise 2.12 [Pages 53 - 55]

MCQ

1Page 53

Choose the correct alternative:

`int 1/x^3  "d"x` is

  • `(-3)/(x^2) + "c"`

  • `(-1)/(2x^2) + "c"`

  • `(-1)/(3x^2) + "c"`

  • `(-2)/(x^2) + "c"`

2Page 53

Choose the correct alternative:

`int 2^x  "d"x` is

  • 2x log 2 + c

  • 2x + c

  • `2^x/log2 + "c"`

  • `log2/2^x + "c"`

3Page 53

Choose the correct alternative:

`int (sin2x)/(2sinx)  "d"x` is

  • sin x + c

  • `1/2 sin x + "c"`

  • `cos x + "c"`

  • `1/2 cos x + "c"`

4Page 53

Choose the correct alternative:

`int (sin5x - sinx)/(cos3x)  "d"x` is

  • − cos 2x + c

  • − cos 2x + c

  • `- 1/4 cos 2x + "c"`

  • − 4 cos 2x + c

5Page 53

Choose the correct alternative:

`int logx/x  "d"x, x > 0` is

  • `1/2 (log x)^2 + "c"`

  • `- 1/2 (log x)^2`

  • `2/x^2 + "c"`

  • `2/x^2 - "c"`

6Page 53

Choose the correct alternative:

`int "e"^x/sqrt(1 + "e"^x)  "d"x` is

  • `"e"^x/sqrt(1 + "e"^x) + "c"`

  • `2sqrt(1 + "e"^x) + "c"`

  • `sqrt(1 + "e"^x) + "c"`

  • `"e"^x sqrt(1 + "e"^x) + "c"`

7Page 53

Choose the correct alternative:

`int sqrt("e"^x) "d"x` is

  • `sqrt("e"^x) + "c"`

  • `2sqrt("e"^x) + "c"`

  • `1/2 sqrt("e"^x) + "c"`

  • `1/(2sqrt("e"^x)) + "c"`

8Page 53

Choose the correct alternative:

`int "e"^(2x) [2x^2 + 2x]  "d"x`

  • `"e"^(2x)x^2 + "c"`

  • `x"e"^(2x) + "c"`

  • `2x^2"e"^2 + "c"`

  • `(x^2"e"^x)/2 + "c"`

9Page 53

Choose the correct alternative:

`int "e"^x/("e"^x + 1)  "d"x` is

  • `log|"e"^x/("e"^x + 1)| + "c"`

  • `log|("e"^x + 1)/"e"| + "c"`

  • `log|"e"^x| + "c"`

  • `log|"e"^x + 1| + "c"`

10Page 53

Choose the correct alternative:

`int[9/(x - 3) - 1/(x + 1)]  "d"x` is

  • `log |x - 3| - log |x + 1| + "c"`

  • `log |x - 3| + log |x + 1| + "c"`

  • `9log |x - 3| - log |x + 1| + "c"`

  • `9log |x - 3| + log |x + 1| + "c"`

11Page 53

Choose the correct alternative:

`int (2x^3)/(4 + x^4)  "d"x` is

  • `log |4 + x^4| + "c"`

  • `1/2 log |4 + x^4| + "c"`

  • `1/4 log |4 + x^4| + "c"`

  • `log |2x^3/(4 + x^4) + "c"`

12Page 53

Choose the correct alternative:

`int ("d"x)/sqrt(x^2 - 36) + "c"`

  • `sqrt(x^2 - 36) + "c"`

  • `log |x + sqrt(x^2 - 36)| + "c"`

  • `log |x - sqrt(x^2 - 36)| + "c"`

  • `log |x^2 + sqrt(x^2 - 36)| + "c"`

13Page 54

Choose the correct alternative:

`int (2x + 3)/sqrt(x^2 + 3x + 2)  "d"x` is

  • `sqrt(x^2 + 3x + 2) + "c"`

  • `2sqrt(x^2 + 3x + 2) + "c"`

  • `log(x^2 + 3x + 2) + "c"`

  • `2/3(x^2 + 3x + 2) + "c"`

14Page 54

Choose the correct alternative:

`int_0^1 (2x + 1)  "d"x` is

  • 1

  • 2

  • 3

  • 4

15Page 54

Choose the correct alternative:

`int_2^4 ("d"x)/x` is

  • log 4

  • 0

  • log 2

  • log 8

16Page 54

Choose the correct alternative:

`int_0^oo "e"^(-2x)  "d"x` is

  • 0

  • 1

  • 2

  • `1/2`

17Page 54

Choose the correct alternative:

`int_(-1)^1 x^3 "e"^(x^4)  "d"x` is

  • 1

  • `2 int_0^1 x^3  "e"^(x^4)  "d"x`

  • 0

  • `"e"^(x^4)`

18Page 54

Choose the correct alternative:

If f(x) is a continuous function and a < c < b, then `int_"a"^"c" f(x)  "d"x + int_"c"^"b" f(x)  "d"x` is

  • `int_"a"^"b" f(x)  "d"x - int_"a"^"c" f(x)  "d"x`

  • `int_"a"^"c" f(x)  "d"x - int_"a"^"b" f(x)  "d"x`

  • `int_"a"^"b" f(x)  "d"x`

  • 0

19Page 54

Choose the correct alternative:

The value of `int_(- pi/2)^(pi/2) cos  x  "d"x` is

  • 0

  • 2

  • 1

  • 4

20Page 54

Choose the correct alternative:

`int_0^1 sqrt(x^4 (1 - x)^2)  "d"x` is

  • `1/12`

  • `(-7)/12`

  • `7/12`

  • `(-1)/12`

21Page 54

Choose the correct alternative:

If `int_0^1 f(x)  "d"x = 1, int_0^1 x  f(x)  "d"x = "a"`, and `int_0^1 x^2 f(x)  "d"x = "a"^2`, then `int_0^1 ("a" - x)^2 f(x)  "d"x` is

  • 4a2

  • 0

  • 2a2

  • 1

22Page 54

Choose the correct alternative:

The value of `int_2^3 f(5 - 3)  "d"x - int_2^3 f(x)  "d"x` is

  • 1

  • 0

  • – 1

  • 5

23Page 54

Choose the correct alternative:

`int_0^4 (sqrt(x) + 1/sqrt(x))  "d"x` is

  • `20/3`

  • `21/3`

  • `28/3`

  • `1/3`

24Page 54

Choose the correct alternative:

`int_0^(pi/3) tan x  "d"x` is

  • log 2

  • 0

  • `log sqrt(2)`

  • 2 log 2

25Page 54

Choose the correct alternative:

Using the factorial representation of the gamma function, which of the following is the solution for the gamma function Γ(n) when n = 8 is

  • 5040

  • 5400

  • 4500

  • 5540

26Page 54

Choose the correct alternative:

Γ(n) is

  • (n – 1)!

  • n!

  • n Γ(n)

  • (n – 1) Γ(n)

27Page 54

Choose the correct alternative:

Γ(1) is

  • 0

  • 1

  • n

  • n!

28Page 54

Choose the correct alternative:

If n > 0, then Γ(n) is

  • `int_0^1 "e"^-x x^("n" - 1) "d"x`

  • `int_0^1 "e"^-x x^"n" "d"x`

  • `int_0^oo "e"^x x^-"n" "d"x`

  • `int_0^oo "e"^-x x^("n" - 1) "d"x`

29Page 55

Choose the correct alternative:

`Γ(3/2)`

  • `sqrt(pi)`

  • `sqrt(pi)/2`

  • `2sqrt(pi)`

  • `3/2`

30Page 55

Choose the correct alternative:

`int_0^oo x^4"e"^-x  "d"x` is

  • 12

  • 4

  • 4!

  • 64

Miscellaneous problems [Page 55]

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board 2 Integral Calculus – 1 Miscellaneous problems [Page 55]

1Page 55

Evaluate the following integral:

`int 1/(sqrt(x + 2) - sqrt(x + 3))  "d"x`

2Page 55

Evaluate the following integral:

`int ("d"x)/(2 - 3x - 2x^2)`

3Page 55

Evaluate the following integral:

`int ("d"x)/("e"^x + 6 + 5"e"^-x)`

4Page 55

Evaluate the following integral:

`int sqrt(2x^2 - 3)  "d"x`

5Page 55

Evaluate the following integral:

`sqrt(9x^2 + 12x + 3)  "d"x`

6Page 55

Evaluate the following integral:

`int (x + 1)^2 log x  "d"x`

7Page 55

Evaluate the following integral:

`int log (x - sqrt(x^2 - 1)) "d"x`

8Page 55

Evaluate the following integral:

`int_0^1 sqrt(x(x - 1))  "d"x`

9Page 55

Evaluate the following integral:

`int_(-1)^1 x^2 "e"^(-2x)  "d"x`

10Page 55

Evaluate the following integral:

`int_0^3 (x dx)/(sqrt(x + 1)+ sqrt(5x + 1))`

Solutions for 2: Integral Calculus – 1

Exercise 2.1Exercise 2.2Exercise 2.3Exercise 2.4Exercise 2.5Exercise 2.6Exercise 2.7Exercise 2.8Exercise 2.9Exercise 2.10Exercise 2.11Exercise 2.12Miscellaneous problems
Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board chapter 2 - Integral Calculus – 1 - Shaalaa.com

Samacheer Kalvi solutions for Business Mathematics and Statistics [English] Class 12 TN Board chapter 2 - Integral Calculus – 1

Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Business Mathematics and Statistics [English] Class 12 TN Board Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Samacheer Kalvi solutions for Mathematics Business Mathematics and Statistics [English] Class 12 TN Board Tamil Nadu Board of Secondary Education 2 (Integral Calculus – 1) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

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Concepts covered in Business Mathematics and Statistics [English] Class 12 TN Board chapter 2 Integral Calculus – 1 are Indefinite Integration with Standard Indefinite Integral Formulae, Definite Integrals.

Using Samacheer Kalvi Business Mathematics and Statistics [English] Class 12 TN Board solutions Integral Calculus – 1 exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Business Mathematics and Statistics [English] Class 12 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.

Get the free view of Chapter 2, Integral Calculus – 1 Business Mathematics and Statistics [English] Class 12 TN Board additional questions for Mathematics Business Mathematics and Statistics [English] Class 12 TN Board Tamil Nadu Board of Secondary Education, and you can use Shaalaa.com to keep it handy for your exam preparation.

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