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Use the fugue to find the exact values of sin 2u, cos 2u, and tan 2u
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Use the fugue to find the exact values of sin 2u, cos 2u, and tan 2u

Use the fugue to find the exact values of sin 2u, cos 2u, and tan 2u-example-1
User Taaam
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1 Answer

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sin 2u= 2sin u*cos u=2*(-3/5)*4/5=-24/25
cos 2u= 1-2sin^2(u)=1-2*(9/25)=1-18/25=7/25
tan 2u= sin/cos=-24/7
These are the correct answers.
User Mukwux
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