f(y=cos^(-1)((2cos x-3sin x)/(sqrt(13)))," then dy in caul to "

If y = cos^(-1) ((2cos x - 3 sin x)/(sqrt(13))),then (dy)/(dx) is

If y = cos^(-1) ((2cos x - 3 sin x)/(sqrt(13))), " then" (dy)/(dx) is equal to

If y=cos ^(-1) ((3cos x-2sin x )/( sqrt(13))),then (dy)/(dx)=

If f(x) = cos^(-1) ((2 cos x + 3 sin x)/( sqrt(13) ) ) , then [f' (x)]^2 is equal to a) sqrt(1+x) b) 1+2x c) 2 d) 1

If y=cos ^(-1) ((cos x+ sin x )/(sqrt( 2))),then (dy)/(dx)=

If y= sin ^(-1) ((cos x +sin x)/( sqrt2)) ,then (dy)/(dx)=

If y=cos^(-1) sqrt((1+cos x)//(2)),"then " dy/dx=