" 18."sin3 theta=sin2 theta

If theta=30° , show that 3sin theta- 4sin^3 theta= sin theta cos2 theta + costheta sin 2theta .

Solve the following equations: sin3 theta+sin2 theta+sin theta=0

Find the number of values of theta satisfying the equation sin3 theta=4sin theta*sin2 theta sin4 theta in 0<=theta<=2 pi

(sin3 theta+cos3 theta)/(cos theta-sin theta)=1+2xx sin2 theta

(sin3 theta-sin theta * sin ^ (2) (2 theta)) / (sin theta + sin2 theta * cos theta) = cos x rarr x =

Sum to terms of the series sin theta sin2 theta+sin2 theta sin3 theta+sin3 theta sin4 theta+... is equal to

Prove that sin theta+sin2 theta+sin4 theta+sin5 theta=4cos((theta)/(2))cos((3 theta)/(2))sin3 theta

Solve 4sin theta sin2 theta sin4 theta=sin3 theta

If cos3 theta+sin3 theta+(2sin2 theta-3)(sin theta-cos theta)>0 then subset of values of theta is

(cos4 theta+cos3 theta+cos2 theta)/(sin4 theta+sin3 theta+sin2 theta)=cot3 theta