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OpenStudy (anonymous):
sin25 cos35+cos25 sin35
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jimthompson5910 (jim_thompson5910):
Hint: use the identity sin(x+y) = sin(x)cos(y) + cos(x)sin(y)
OpenStudy (anonymous):
how would I combine them?
OpenStudy (aum):
You can write the above identity in reverse: sin(x)cos(y) + cos(x)sin(y) = sin(x+y) Compare this to: sin25 cos35+cos25 sin35 Identify x and y. Plug the numbers on the right hand side of the identity.
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