Labels:text | screenshot | diagram | rectangle | parallel | line | font | number OCR: double angle formulas half angle formulas sin 2x = 2 sin x cos x sin = = + 1 - Cos x 2 2 cos 2x = cos x - sin2x = 1 - 2 sin2x Cos A = + 1 + Cos x = 2 cos x - 1 2 tan 2x = 2 tan x 1 - Cos x 1 - tan x tan = = + V 1 + cos x table of contents
