Complementary & Supplementary Angles



Summary of Identities:

sin (-x) = - sin x cos (-x) = cos x tan (-x) = - tan x
sin (90°- x) = cos x cos (90°- x) = sin x tan (90°- x) = cot x	sin (90°+ x) = cos x cos (90°+ x) = - sin x tan (90°+ x) = - cot x
sin (180° - x) = sin x cos (180° - x) = - cos x tan (180° - x) = - tan x	sin (180° + x) = - sin x cos (180° + x) = - cos x tan (180° + x) = tan x
sin (270°- x) = - cos x cos (270°- x) = - sin x tan (270°- x) = cot x	sin (270°+ x) = - cos x cos (270°+ x) = sin x tan (270°+ x) = - cot x
sin (360° - x) = - sin x cos (360° - x) = cos x tan (360° - x) = - tan x	sin (360° + x) = sin x cos (360° + x) = cos x tan (360° + x) = tan x

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