Trigonometric Rules (inc. double angle formula) 0.0 / 5 ? MathematicsTrigonometry and radiansA2/A-levelAll boards Created by: EYardleyCreated on: 27-01-16 22:39 sin^2 A + cos^2 A = ... 1 1 of 14 tan A = ... sin A / cos A 2 of 14 sin (-A) = ... -sin A 3 of 14 cos (-A) = ... cos A 4 of 14 tan (-A) = ... - tan A 5 of 14 sin (A+B) = ... sin A cos B + cos A sin B 6 of 14 sin (A-B) = ... sin A cos B - cos A sin B 7 of 14 cos (A+B) = ... cos A cos B - sin A sin B 8 of 14 cos (A-B) = ... cos A cos B + sin A sin B 9 of 14 tan (A+B) = ... (tan A +tan B) / (1 - tan A tan B) 10 of 14 tan (A-B) = ... (tan A - tan B) / (1 + tan A tan B) 11 of 14 sin 2A = ... 2 sin A cos A 12 of 14 cos 2A = ... cos^2 A - sin^2A 13 of 14 tan 2A = ... (2 tan A) / (1 - tan^2 A) 14 of 14
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