AM-2713

Trigonometric equations

A Math · Secondary 4 · Medium · Trigonometric equations

Solve the equation

3\sin(2x) - 1 = 0

for

0^\circ \le x \le 180^\circ

.

$x \approx 9.74^\circ,\ 80.27^\circ$
$x \approx 19.47^\circ,\ 160.53^\circ$
$x \approx 9.74^\circ,\ 170.26^\circ$
$x \approx 29.21^\circ,\ 150.79^\circ$

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