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