Trigonometry Examples

$\sin (x) + \sin (2 x) + \sin (3 x) = 1 + \cos (x) + \cos (2 x)$

Step 1

Graph each side of the equation.

$y = \sin (x) + \sin (2 x) + \sin (3 x)$

$y = 1 + \cos (x) + \cos (2 x)$

Step 2