Arts (English Medium) कक्षा १२ - CBSE Question Bank Solutions for Mathematics

Evaluate:

`cosec{cot^-1(-12/5)}`

Evaluate:

`cos(tan^-1  3/4)`

Evaluate: `sin{cos^-1(-3/5)+cot^-1(-5/12)}`

Evaluate: 

`cot(sin^-1  3/4+sec^-1  4/3)`

Evaluate:

`sin(tan^-1x+tan^-1  1/x)` for x < 0

Evaluate:

`sin(tan^-1x+tan^-1  1/x)` for x > 0

Evaluate:

`cot(tan^-1a+cot^-1a)`

Evaluate:

`cos(sec^-1x+\text(cosec)^-1x)`,|x|≥1

If `cos^-1x + cos^-1y =pi/4,`  find the value of `sin^-1x+sin^-1y`

If `sin^-1x+sin^-1y=pi/3`  and  `cos^-1x-cos^-1y=pi/6`,  find the values of x and y.

If `cot(cos^-1  3/5+sin^-1x)=0`, find the values of x.

If `(sin^-1x)^2+(cos^-1x)^2=(17pi^2)/36,`  Find x

`sin(sin^-1  1/5+cos^-1x)=1`

`sin^-1x=pi/6+cos^-1x`

`4sin^-1x=pi-cos^-1x`

`tan^-1x+2cot^-1x=(2x)/3`

`5tan^-1x+3cot^-1x=2x`

Prove the following result:

`tan^-1  1/7+tan^-1  1/13=tan^-1  2/9`

Prove the following result:

`sin^-1  12/13+cos^-1  4/5+tan^-1  63/16=pi`

Prove the following result:

`tan^-1  1/4+tan^-1  2/9=sin^-1  1/sqrt5`