Recent questions tagged trig identity

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tanx-(tanx*tanx)/1+(tanx*tanx)=sin(cosx-sinx)
asked Feb 5, 2013 in Calculus Answers by anonymous | 632 views
1 answer
evaluate secx=4, sinx>0
asked Feb 4, 2013 in Trigonometry Answers by anonymous | 505 views
1 answer
what is the formula for sin(a+b)?
asked Jan 25, 2013 in Trigonometry Answers by anonymous | 572 views
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