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10 cards from this deck
sin(A+B)=sinAcosB+cosAsinB\sin(A + B) = \sin A \cos B + \cos A \sin Bsin(A+B)=sinAcosB+cosAsinB
sin(A−B)=sinAcosB−cosAsinB\sin(A - B) = \sin A \cos B - \cos A \sin Bsin(A−B)=sinAcosB−cosAsinB
cos(A+B)=cosAcosB−sinAsinB\cos(A + B) = \cos A \cos B - \sin A \sin Bcos(A+B)=cosAcosB−sinAsinB
cos(A−B)=cosAcosB+sinAsinB\cos(A - B) = \cos A \cos B + \sin A \sin Bcos(A−B)=cosAcosB+sinAsinB
tan(A+B)=tanA+tanB1−tanAtanB\tan(A + B) = \frac{\tan A + \tan B}{1 - \tan A \tan B}tan(A+B)=1−tanAtanBtanA+tanB
tan(A−B)=tanA−tanB1+tanAtanB\tan(A - B) = \frac{\tan A - \tan B}{1 + \tan A \tan B}tan(A−B)=1+tanAtanBtanA−tanB
By using the unit circle and trigonometric identities.
Solved trigonometric equations and proved identities.
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