Find the fundamental period of `f(x)=cosxcos2xcos3xdot`

What is the fundamental period of f(x) = (sin x+ sin 3x)/(cos x+ cos 3x)

The fundamental period of the function f(x)=4cos^4((x-pi)/(4pi^2))-2cos((x-pi)/(2pi^2)) is equal to :

If a and b are natural numbers and f(x)=sin(sqrt(a^2-3))x+cos(sqrt(b^2+7))x is periodic with finite fundamental period then period of f(x) is

Solve cosxcos2xcos3x=1/4

Find the integrals of the functions sin3xcos4x

Find the imtegrals of the functions cos4xcos6x

Find the range of f(x)=sin^(-1)x+tan^(-1)x+cos^(-1)xdot

Find the derivative of f(x)=(2x+3)

Find the value of a in order that f(x)=sqrt(3)sinx-cosx-2a x+b decreases for all real values of xdot

Find the least value of sec^6x+cos e c^6x+sec^6xcos e c^6xdot