" f) "(5x)^(3cos2x)(" NCERT) "

"Let f(x) "=|{:(cos x" " sin x" " cos x),(cos 2x" "sin 2x" "2cos 2x),(cos 3x" "sin 3x" "3cos 3x):}|" Then find the vlue of "f'(0) and f'(pi//2).

"Let f(x) "=|{:(cos x" " sin x" " cos x),(cos 2x" "sin 2x" "2cos 2x),(cos 3x" "sin 3x" "3cos 3x):}|" Then find the vlue of "f'(0) and f'(pi//2).

The period of f(x)=tan 3x+ cos""(5x)/(2) ,is

The period of f(x)=tan 3x+ cos""(5x)/(2) ,is

If f: R to R is defined by f(x)=7+ cos(5x+3) " for " x in R , then the period of f is

If f_(n)(x) = (sin x)/(cos3x)+(sin 3x)/(cos 3^(2)x) +(sin 3^(2)x)/(cos 3^(3)x) +....+ (sin 3^(n-1)x)/(cos 3^(n)x)"Then" f_(2) ((pi)/(4)) + f_(3) ((pi)/(4))=

Let [x] greatest integer le x . Define f : R to R by f(x) = cos(5x) cos [5x] + sin(5x) sin [5x] then period of f is ………..

f(x)=5+3sin x+4cos x