AM-1012

Trigonometric equations

A Math · Secondary 3 · Hard · Trigonometric equations

Solve the equation

4\cos\dfrac{x}{2}=\sqrt{3}

for

0^\circ<x<360^\circ

.

$57.9^\circ$ (3 s.f.)
$28.9^\circ$ (3 s.f.)
$122.1^\circ$ (3 s.f.)
$302.1^\circ$ (3 s.f.)

Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.

Loading problem…