Trigonometric Identities Cheat Sheet, Summaries of Trigonometry

Download Trigonometric Identities Cheat Sheet and more Summaries Trigonometry in PDF only on Docsity! • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Trigonometric Identities Cheat Sheet Quotient Identities tan = sin cos cot = cos sin Reciprocal Identities sin = 1 csc cos = 1 sec tan = 1 cot Co-function Identities sin = cos 2 cos = sin 2 tan = cot 2 csc = sec 2 sec = csc 2 cot = tan 2 Phytagorean Identities sin2 cos2 = 1 1 tan2 = sec2 1 cot2 = csc2 Double Angle Identities sin 2 = 2 sin cos cos 2 = cos2 sin2 cos 2 = 2 cos2 1 cos 2 = 1 2 sin2 tan 2 = 2 tan 1 tan2 Negative Angle Identities sin = sin cos = cos tan = tan csc = csc Supplement Angle Identities sin = sin cos = cos tan = tan csc = csc