Number of solution(s) of the equation `(sinx)/(cos3x)+(sin3x)/(cos9x)+(sin9x)/(cos27x)=0` in the interval `(0,pi/4)` is____________

Number of solutions (s) of the equation (sin x)/(cos 3x) +(sin 3x)/(cos 9x)+(sin 9x)/(cos 27 x)=0 in the interval (0, pi/4) is __________.

Number of solution (s) of the equation ((2-cos^(2)x)/(sin x))^(3)+((3-cos2x)/(sin x))=0 is

The number of solutions of the equation 2(sin^(3)x+cos^(3)x)-3(sin x+cos x)+8=0 in the interval (0,4 pi) is

The number of solutions of the equation 2(sin^(3)x+cos^(3)x)-3(sin x+cos x)+8=0 in the interval (0,4 pi) is

The number of solutions of the equation 2(sin^(3)x+cos^(3)x)-3(sin x+cos x)+8=0 in the interval (0,4 pi) is

The number of solutions of the equation 2(sin^(3)x+cos^(3)x)-3(sin x+cos x)+8=0 in the interval (0,4 pi) is

Find the number of solutions of the equation sin5x cos3x=sin6x cos2x,x in[0,pi]

Show that: (sin x)/(cos3x)+(sin3x)/(cos9x)+(sin9x)/(cos27x)=(1)/(2)(tan27x-tan x)

Prove that: (sin x)/(cos3x)+(sin3x)/(cos9x)+(sin9x)/(cos27x)=((1)/(2))(tan27x-tan x)