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Trigonometry Homework.Please Help?

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Simplify :tan A -cscA sec A(1-2 cos^2 A)

asked Nov 11, 2014 in TRIGONOMETRY by anonymous
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1 Answer

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tan A - csc A sec A(1 - 2cos² A)

image

So tan A - csc A sec A(1 - 2cos² A) = cot A .

answered Nov 11, 2014 by yamin_math Mentor

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