`sin theta + sin2theta + sin3theta = sin alpha` and `costheta + cos2theta + cos3theta = cos alpha` then `theta ` is equal to

If sin theta+sin2theta+sin3theta=sin alpha and cos theta+cos 2theta+cos3theta=cos alpha , then theta is equal to

If sin theta+sin2theta+sin3theta=sin alpha and cos theta+cos 2theta+cos3theta=cos alpha , then theta is equal to

If sin theta+sin2theta+sin3theta=sin alpha and cos theta+cos 2theta+cos3theta=cos alpha , then theta is equal to

If sin theta+sin2 theta+sin3 theta=sin alpha and cos theta+cos2 theta+cos3 theta=cos alpha, then theta is equal to

sin theta+sin2 theta+sin3 theta=sin alpha and cos theta+cos2 theta+cos3 theta=cos alpha then theta is equal to

If sin theta+sin2theta+sin3theta=sin alpha and cos theta+cos 2theta+cos3theta=cos alpha , then theta is equal to ................. A) (alpha )/(2) B) alpha C) 2 alpha D) (alpha )/(6)

If sintheta+sin2theta+sin3theta=sinalpha and costheta+cos2theta+cos3theta=cosalpha , then theta is equal to

costheta-cos2theta=sin3theta

If sin theta_1 + sin theta_2 + sintheta_3 =3 then cos theta_1 + cos theta_2 + costheta_3 is equal to