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Pre-calc/Trig Suppose that θ=arcsin(4/6). What is cos(2θ)? (round to 4 decimals)
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9 votes
Pre-calc/Trig
Suppose that θ=arcsin(4/6). What is cos(2θ)? (round to 4 decimals)

User Ebrown
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1 Answer

6 votes

Answer:

0.7453

Explanation:


arcsin( (4)/(6) ) = 0.7297 \\ cos(0.7297) = 0.7453

User Methodsignature
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7.8k points
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