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# Proof of the sine angle addition identity

Sal proves the identity sin(x+y) = sin(x)*cos(y) + cos(x)*sin(y). Created by Sal Khan.

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# Proof of the sine angle addition identity

Current time:0:00Total duration:8:26

0 energy points

Sal proves the identity sin(x+y) = sin(x)*cos(y) + cos(x)*sin(y). Created by Sal Khan.