Home
Class 12
MATHS
If 0 lt= x lt= (pi)/(2) and 81^(sin^(2)...

If `0 lt= x lt= (pi)/(2) ` and `81^(sin^(2)x) + 81^(cos^(2)x) =30` then x is equal to :

A

`(pi)/(2)`

B

`(pi)/(2)`

C

`(pi)/(4)`

D

0

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

If 0 lt x lt pi/2 and sin^(n) x + cos^(n) x ge 1 , then n may belong to

The value of x , 0 le x le (pi)/2 which satisfy the equation 81^( sin^(2)x)+81^(cos^(2)x)=30 are

int (sin^2 x - cos^2 x)/(sin^2 x cos^2 x) dx is equal to :

int_0^(pi/2) sin^(3/2x)/(sin^(3/2)x+cos^(3/2)x)dx is equal to :

int_0^(pi/2) sin^(3/2x)/(sin^(3/2)x+cos^(3/2)x)dx is equal to :

int_0^(pi/2) sin^(3/2x)/(sin^(3/2)x+cos^(3/2)x)dx is equal to :

int_0^(pi/2) sin^(5/2x)/(sin^(5/2)x+cos^(5/2)x)dx is equal to :

int_0^(pi/2) sin^(5/2x)/(sin^(5/2)x+cos^(5/2)x)dx is equal to :