SOLUTION: cos(3.14+x)cos(-x)/sin(3.14-x)cos(3.14/2+x)=cotx*cot

Algebra ->  Trigonometry-basics -> SOLUTION: cos(3.14+x)cos(-x)/sin(3.14-x)cos(3.14/2+x)=cotx*cot       Log On


   

Question 316295: cos(3.14+x)cos(-x)/sin(3.14-x)cos(3.14/2+x)=cotx*cot
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
cos(3.14+x)cos(-x)/sin(3.14-x)cos(3.14/2+x)=cotx*cot
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(-cos(x))(cos(x))/sin(x)(-sin(x)) = cot^2(x)
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-cos^2(x)/-sin^2(x) = cot^2(x)
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cot^2(x)x = cot^2(x)
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Cheers,
Stan H.
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