Question

a value of θ for which (2+3sinθ)/(1-2sinθ) is purely imaginary is

Answer 1

Step-by-step explanation:

This value won't exist if denominator is zero or

$1 - 2si n \: \theta = 0 \\ \theta = \frac{1}{2} \\ \theta =2 n\pi \pm \frac{\pi}{6}$