If `a=1/(5cosx+12sinx)` then for all real x.

If a= ( 1)/( 5 cos x+ 12 sin x) then for all real x

intdx/sqrt(13+5cosx-12sinx)

If 3f(cosx)+2f(sinx)=5x , then f^(')(cosx) is equal to (where f^(') denotes derivative with respect to x ) (A) −1/(cosx) (B) 1/(cosx) (C) -1/(sinx) (D) 1/(sinx)

If (1+sinx)/(cosx)+(cosx)/(1+sinx)=4 , then find x.

intdx/sqrt (13+5cosx-12sinx)

intdx/sqrt (13+5cosx-12sinx)

If y+cosx = sinx has a real solution , then :

If y+cosx = sinx has a real solution , then :

The value of K in order that f(x)=sinx-cosx-Kx+5 decreases for all positive real values of x given by