find the exact value of sine, cosine, and tangent of the angle..

7pi/12

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- April 27th 2009, 04:22 PMjumpman23exact value
find the exact value of sine, cosine, and tangent of the angle..

7pi/12 - April 27th 2009, 04:40 PMSoroban
Hello, jumpman23!

Recall the compound-angle identities:

. .

Quote:

Find the exact value of sine, cosine, and tangent of: .

Can you finish it now?