The number of solution of `sec^2theta+cos e c^2theta+2cos e c^2theta=8,0lt=thetalt=pi/2` is 4 (b) 3 (c) 0 (d) 2

The number of solution of sec^(2) theta + cosec^(2) theta+2 cosec^(2) theta=8, 0 le theta le pi//2 is

The number of solution of cos 2 theta = sin theta in (0, 2 pi) is

Solve 3sin^2 theta -cos^2 theta=0

Solve cos theta+cos 2theta+cos 3theta=0 .

Solve : 5cos2theta+2cos^2(theta/2)+1=0,-pi lt theta lt pi

The number of solutions of equation 6cos2theta+2cos^2(pi/2)+2sin^2pi=0,-pi

The number of solutions of the equation sin 2 theta-2 cos theta +4 sin theta=4 in [0, 5pi] is equal to

Solve 2 cos^(2) theta+3 sin theta=0

The sum of all the solutions of cottheta=sin2theta(theta!=npi, n in t ege r) , 0lt=thetalt=pi, is (3pi)/2 (b) pi (c) 3 pi/4 (d) 2pi

Solve sin^(2) theta-2 cos theta+1/4=0