Question

Solve 2 sin 0 = sin 20 for 0 degree 0 more than or equal 0 more than or equal 180

Answer 1

Step-by-step explanation:

Im use x instead of theta.

$2 \sin(x) = \sin(2x)$

$2 \sin(x) = 2 \sin(x) \cos(x)$

$1 = \cos(x)$

$x = 0$