If `tantheta/2=cose ctheta-sintheta`, then the numberical value of `cos^2 (theta/2)` is

If sintheta=costheta then the value of 2tantheta+cos^2theta is

If f(theta)=(sintheta+cos e ctheta)^2+(costheta+s e ctheta)^2, then minimum value of f(theta) is 7 8 9 4. None of these

If 3 cos theta-4sintheta=2costheta+sintheta find tantheta .

If sintheta - cos theta = sqrt(2)cos theta , then the value of sintheta + cos theta is:

2-cos^(2)theta =3 sintheta costheta , sintheta ne cos theta , then the value of tan theta is

If tantheta+sintheta=m and tan theta-sin theta=n , then find the value of m^(2)-n^(2) .

If tantheta=-(1)/(sqrt(3)),sintheta=(1)/(2)andcostheta=-(sqrt(3))/(2) , then the principal value of theta will be

If tantheta=-(1)/(sqrt(3)),sintheta=(1)/(2)andcostheta=-(sqrt(3))/(2) , then the principal value of theta will be

If sintheta+sin^(2)theta=1 , then find the value of cos^(2)theta+cos^(4)theta .

If sin theta_1 + sintheta_2 + sin theta_3=3, then find the value of cos theta_1 + cos theta_2 + cos theta_3.