Science (English Medium) कक्षा १२ - CBSE Question Bank Solutions

Integrate the rational function:

`1/(e^x -1)`[Hint: Put e^x = t]

`int (xdx)/((x - 1)(x - 2))` equals:

`int (dx)/(x(x^2 + 1))` equals:

Using properties of determinants, prove that 

`|(a^2 + 2a,2a + 1,1),(2a+1,a+2, 1),(3, 3, 1)| = (a - 1)^3`

Find `int(e^x dx)/((e^x - 1)^2 (e^x + 2))`

Using properties of determinants, prove that `|(x,x+y,x+2y),(x+2y, x,x+y),(x+y, x+2y, x)| = 9y^2(x + y)`

Using properties of determinants, prove that `|(1,1,1+3x),(1+3y, 1,1),(1,1+3z,1)| = 9(3xyz + xy +  yz+ zx)`

Find `int (2cos x)/((1-sinx)(1+sin^2 x)) dx`

f(x) = 4x² + 4 on R .

f(x)=| x+2 | on R .

f (x) = \[-\] | x + 1 | + 3 on R .

f(x) = 16x² \[-\] 16x + 28 on R ?

f(x) = x³ \[-\] 1 on R .

f(x) = (x \[-\] 5)⁴.

f(x) = x³ \[-\] 3x.

f(x) = x³  (x \[-\] 1)² .