SOLUTION: Rewrite as a single expression. cos(10θ)cos(4θ) + sin(10θ)sin(4θ) Select one: a. cos(6θ) b. cos(14θ) c. sin(14θ) d. sin(6θ)

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Question 1079978: Rewrite as a single expression.
cos(10θ)cos(4θ) + sin(10θ)sin(4θ)
Select one:
a. cos(6θ)
b. cos(14θ)
c. sin(14θ)
d. sin(6θ)

Answer by ikleyn(52800)   (Show Source): You can put this solution on YOUR website!
.
=  = .

Option a.



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