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10 cards from this deck
Rules for trig functions of compound angles in terms of θ\thetaθ
sinθ\sin \thetasinθ
−cosθ-\cos \theta−cosθ
−sinθ-\sin \theta−sinθ
tanθ\tan \thetatanθ
cosθ\cos \thetacosθ
Trig pairs equal when arguments are complementary angles
For 90°±θ90° ± \theta90°±θ or θ±90°\theta ± 90°θ±90°
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