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1. $θ$

A. $\sin^{2} θ + \cos^{2} = 1$
B. $\sin^{2} θ + \cos^{2} = 1$
C. $\sin^{2} θ + \cos^{2} = 1$
D. $\sin^{2} θ + \cos^{2} = 1$

Answer: Option A

Explanation:

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