If and is an acute angle

MATHEMATICS · Single correct · ISC · Mathematics · Sets and Functions · Sets and Functions

Problem

\sin x = \dfrac{1}{2}

and

x

is an acute angle, find

\sin 3x

. (a)

0

(b)

\dfrac{\sqrt{3}}{2}

(c)

1

(d)

\dfrac{1}{2}