1.

What is the value of [(cos3θ + 2cos5θ + cos7θ) ÷ (cosθ + 2cos3θ + cos5θ)] + sin2θ.tan3θ?

A. cos2θ
B. sin2θ
C. tan2θ
D. cotθ.sin2θ
Answer» B. sin2θ


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