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

Find real theta such that (3+2i sin theta)/(1-2i sin theta) is purely real.

(i)If z is a complex no.such that |z|=1; prove that (z-1)/(z+1) is purely imaginary.what will be the conclusion if z=1 (ii) Find real theta such that (3+2i sin theta)/(1-2i sin theta) is purely real

The real value of theta for which the expression (1+i cos theta)/(1-2i cos theta) is real number is

The real value of theta for which the expression (1 + icos theta)/(1 - 2i cos theta) is real number is

(5 + i sin theta)/(5-3i sin theta) is a real number when

Find real theta such that (3+2is int h eta)/(1-2is int h eta) is purely real.

(3+2i sin theta)/(1-2i sin theta) will be purely imaginary,then find theta