Mathematics

Problem

Angles

A, B

and

C

of a

\triangle ABC

are in AP. If

\frac{b}{c} = \frac{\sqrt{3}}{\sqrt{2}}

, then

\angle A

is equal to a.

\frac{\pi}{6}

\frac{\pi}{4}

\frac{5\pi}{12}

\frac{\pi}{2}