Question: Given sin 72 cos 12 cos 72 sin 12 What is the second step equa to A cos 72 12 B cos 72 12 C

 Given sin 72 cos 12 cos 72 sin 12 What is

the second step equa to A cos 72 12 B cos 72

Given sin 72 cos 12 cos 72 sin 12 What is the second step equa to A cos 72 12 B cos 72 12 C D sin 72 12 sin 72 12

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