Question

If sinθ=3/5 and θ terminates in the first quadrant, find the exact value of cos2θ.

Answer 1

we first solve the angle from the given sinθ=3/5. Using a calculator in degrees mode, theta is equal to 36.87 degrees. Hence 2 theta is equal to 73.74 degrees. The value of cosine 73.74 degrees is equal to 7/25. This is the final answer. 

Answer 2

Answer:

D

Step-by-step explanation:

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