#54 5.01 questions Precalculus

label Mathematics
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May 15th, 2015

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(cotx+cscx)(cotx-cscx)

remove blackets

=cotx*cotx+cotccscx-cotxcscx+cscx*cscx

then simplify

=cotx^2+csc^2

answer is cotx^2+csc^2

May 15th, 2015

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