


Be able to apply these to all the quadrants.

cos cot sin u u u Reciprocal 1 sec cos u u 1 csc sin u u Pythagorean 2 2 2 2 2 2 cos sin 1 1 tan sec 1 cot csc u u u u u u Know the exact values of sine, cosine, and tangent for 0,, ,, 6 4 3 2 . Download Trigonometric Identities Cheat Sheet and more Trigonometry Cheat Sheet in PDF only on Docsity!Trigonometry Identities Must have these memorized for Test and Final Exam Ratio sin tan cos u u u .
