Where is my error in this problem?
Set up triangle with angle t, adjacent , opposite=2x, and hypotenuse=1.
Last edited by Mike9182; Sep 2nd 2010 at 09:02 AM.
Reason: latex error
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sin(2t)= 2 sin(t) cos(t). Here, you have sin(t)= 2x and, from , so that . .
Your error is a silly one in the last step . . . back-substituting.
Set up triangle with angle . . This is all correct!
So we have: .
Substitute: . . . . . . . .
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