litbrendiRos
litbrendiRos litbrendiRos
  • 16-08-2016
  • Mathematics
contestada

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

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meerkat18
meerkat18 meerkat18
  • 19-08-2016
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. 
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underhr
underhr underhr
  • 27-09-2020

Answer:

D

Step-by-step explanation:

edge 2020

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