Question

sin theta = cos( 2 theta - 45°) find tan theta

answer fast plzzzz....​

Answer 1

Step-by-step explanation:

$\sin( \alpha ) = \cos(2 \alpha - 45) \\ = \cos(2 \alpha ) \cos(45) + \sin(2 \alpha ) \sin(45) \\ = \frac{1}{ \sqrt{2} } ( \cos(2 \alpha ) + \sin(2 \alpha ) )$