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Question # 41

If sin⁡θ=513\sin θ=\tfrac{5}{13} and θ is acute, what is cos⁡θ\cos θ?

Options:

A.

1213\tfrac{12}{13}

B.

−1213-\tfrac{12}{13}

C.

512\tfrac{5}{12}

D.

−512-\tfrac{5}{12}

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