Trigonometry Identities 0.0 / 5 ? MathematicsTrigonometry and radiansA2/A-levelEdexcel Created by: chalky-nerdCreated on: 16-01-21 19:56 Sin 2A 2 Sin A Cos A 1 of 14 Cos 2A Cos^2 A - Sin^2 A 2 of 14 Tan 2A (2 Tan A) / (1 - tan^2 A) 3 of 14 Sin (A + B) Sin A Cos B + Cos A Sin B 4 of 14 Sin (A - B) Sin A Cos B - Cos A Sin B 5 of 14 Cos (A + B) Cos A Cos B - Sin A Sin B 6 of 14 Cos (A - B) Cos A Cos B + Sin A Sin B 7 of 14 Tan (A + B) (Tan A + Tan B) / (1 - Tan A Tan B) 8 of 14 Tan (A - B) (Tan A - Tan B) / (1 + Tan A Tan B) 9 of 14 Sin^2 A 1/2 (1 - Cos2A) 1 - Cos^2 A 10 of 14 Cos^2 A 1/2 (1 + Cos2A) 1 - Sin^2 A 11 of 14 Tan^2 A Sec^2 A - 1 12 of 14 Sec^2 A 1 + Tan^2 A 13 of 14 Cosec^2 A 1 + Cot^2 A 14 of 14
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