If `(3+2i sintheta)/(1-2i sintheta)` is purely imaginary, the value of `theta` is: …..

If sintheta=(8)/(17) , where theta is an acute angle, find the value of cos theta by using identities.

If sintheta=sqrt(3)costheta,-pi < theta < 0 , then the value of theta is

Find real values of theta for which (4 + 3i sin theta) / (1 - 2i sin theta) is purely real.

A Value of theta for which frac{2+3isintheta}{1-2isintheta} is purely imaginary is

Select and write the correct answer from the given alternatives in each of the following:If 3sin2theta=2sin3theta , 0 < theta < pi ,then the value of sintheta is

If sintheta+ costheta=1 , then find the general value of theta .

Prove 1/(1+sintheta)+1/(1-sintheta) = 2 sec^2 theta

If 2sin^2theta+3sintheta=0 ,find the permissible value of costheta .

If sintheta=3sin(theta+2alpha) , then the value of tan(theta+alpha)+2 tan alpha is