Hi Ahmed,
We have used the formula for sin 2x and cos 2x. Please check the grey box on the right side.
Written on June 27, 2017, 3:44 p.m.
Hi Ahmed,
We have used the formula for sin 2x and cos 2x. Please check the grey box on the right side.
Written on June 27, 2017, 3:44 p.m.