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13 cards from this deck
Trig identities for sin/cos/tan of sum or difference of 2 angles
sinAcosB+cosAsinB\sin A \cos B + \cos A \sin BsinAcosB+cosAsinB
sinAcosB−cosAsinB\sin A \cos B - \cos A \sin BsinAcosB−cosAsinB
cosAcosB−sinAsinB\cos A \cos B - \sin A \sin BcosAcosB−sinAsinB
cosAcosB+sinAsinB\cos A \cos B + \sin A \sin BcosAcosB+sinAsinB
tanA+tanB1−tanAtanB\frac{\tan A + \tan B}{1 - \tan A \tan B}1−tanAtanBtanA+tanB
tanA−tanB1+tanAtanB\frac{\tan A - \tan B}{1 + \tan A \tan B}1+tanAtanBtanA−tanB
Solve trig eqs, prove identities, simplify expressions
Do not apply
Divide sine formula by cosine formula
6+24\frac{\sqrt{6} + \sqrt{2}}{4}46+2
cosθ\cos \thetacosθ
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