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For all n belong to Z, ( cos? + ? sin? )n
1.
For all n belong to Z, ( cos? + ? sin? )n
A.
Csc n? + ? sin n?
B.
Tann? +? cotn?
C.
Cosn? + ? sinn?
D.
Cosn? - ? sinn?
Answer» B. Tann? +? cotn?
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