Find the period of `f(x) = sin""(pix)/(n!)-cos""(pix)/((n+1)!)`

Find the period of cos(cos x) + cos(sin x).

Find the derivative of f(x)=(x^(2)cos (pi/4))/(sin x)

Find the derivative of sin^(n)x

Find the derivative of (cos x)/(1+sin x)

What is the fundamental period of f(x) = (sin x + sin 3x)/(cos x + cos 3x) a) pi//2 b) pi c) 2pi d) 3pi

Find the derivative of (sin x + cos x)/( sin x - cos x )

Find the integral (cos x-sin x)/(1+sin 2 x)

If sum_(k=0)^(n) f (x+ka)=0 where a gt 0 then the period of f(x) is a)a b)(n+1) a c) a/(n+1) d)f(x) is non - periodic