Solve the following trigonometric equation : `cos 5theta = 0`

Solve the following trigonometric equation : sin^3 3theta =0

Solve the following trigonometric equation: tan3theta=-1

Solve the following trigonometric equation : cot^2 px=0

Solve the following trigonometric equations: sin(theta/2)=-1 (ii) cos(3theta)/2=1/2 (iii) t a n(2/3theta)=sqrt(3)

Solve the following trigonometric equation: \ t a n2theta=sqrt(3)

Solve the following trigonometric equation : tan nx = 0

Solve the following trigonometric equation: tantheta=1/(sqrt(3))

Solve the trigonometric equation : cos 5theta = -1/2

Find the values of the following trigonometric ratio: cos 855^0

Solve the trigonometric equation : 3 cos^2 theta + 7 sin^2 theta =4