SOLUTION: which expression is equivalent to cos(5 theta) plus cos(3 theta)

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Question 885442: which expression is equivalent to cos(5 theta) plus cos(3 theta)
Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
which expression is equivalent to cos(5 theta) plus cos(3 theta)
use x for theta
Sum-to-Product Formula:

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