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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Mathematics

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Mathematics
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Rationalise the denominator and simplify `(2sqrt(6) - sqrt(5))/(3sqrt(5) - 2sqrt(6))`

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Rationalise the denominator and simplify `sqrt(5)/(sqrt(6) + 2) - sqrt(5)/(sqrt(6) - 2)`

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

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Find the value of a and b if `(sqrt(7) - 2)/(sqrt(7) + 2) = asqrt(7) + b`.

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

If x = `sqrt(5) + 2`, then find the value of `x^2 + 1/x^2`

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Given `sqrt(2)` = 1.414, find the value of `(8 - 5sqrt(2))/(3 - 2sqrt(2))` (to 3 places of decimals).

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following numbers in the scientific notation:

569430000000

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following numbers in the scientific notation:

2000.57

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following numbers in the scientific notation:

0.0000006000

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following number in the scientific notation:

0.0009000002

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

For which set of numbers do the mean, median and mode all have the same values?

[8] Statistics
Chapter: [8] Statistics
Concept: undefined >> undefined

Write the following numbers in decimal form:

3.459 × 10 

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Write the following numbers in decimal form:

5.678 × 10

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Write the following numbers in decimal form:

1.00005 × 10−5 

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Write the following numbers in decimal form:

2.530009 × 10−7 

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following numbers in scientific notation:

(300000)2 × (20000)

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following numbers in scientific notation:

(0.000001)11 ÷ (0.005)

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following numbers in scientific notation:

`{(0.00003)^6 xx (0.00005)^4} ÷ {(0.009)^3 xx (0.05)^2}`

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following information in scientific notation:

The world population is nearly 7000,000,000

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following information in scientific notation:

One light year means the distance 9460528400000000 km

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined

Represent the following information in scientific notation:

Mass of an electron is 0.000 000 000 000 000 000 000 000 000 00091093822 kg

[2] Real Numbers
Chapter: [2] Real Numbers
Concept: undefined >> undefined
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