" (ii) "(3x+sin3x)/(1+cos3x)

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))=

What is the fundamental period of f(x)=(sin x+sin3x)/(cos x+cos3x)

Prove that: ,,(sin x+sin3x)/(cos x+cos3x)=tan2x

Prove that :(sin x+sin3x)/(cos x+cos3x)=tan2x

Period of f(x)=(sin x+sin3x)/(cos x+cos3x) is (Value of e=2.72 and pi=3.14 )

Number of solution(s) of the equation (sin x)/(cos3x)+(sin3x)/(cos3x)+(sin2x)/(cos27x)=0 in the interval (0,(pi)/(4)) is

Prove that: (sin5x+sin3x)/(cos5x+cos3x)=tan4x

Prove that (sin5x+sin3x)/(cos5x+cos3x)=tan4x

Prove that (sin 5x+sin3x)/(cos 5x+cos3x)=tan4x