If sin A = 7/25, and cos B = 24/25, find sin A cos B + cos A sin B:
A.24/25✓ Correct
B.336/625
C.168/625
D.13/25
Explanation
sin A cos B + cos A sin B = sin(A+B). sin A = 7/25 so cos A = 24/25; cos B = 24/25 so sin B = 7/25. sin(A+B) = (7/25)(24/25)+(24/25)(7/25) = 168/625 + 168/625 = 336/625.
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