October 13, 2015

Homework Help: Calculus

Posted by dazed and confused on Monday, December 13, 2010 at 9:36pm.

dy/dx[tan(y)=x=y] in terms of y

the answer my teacher got was cot^2(y) but i get is 1/[sec^2(y)-1]

either i made a mistake, my teacher made a mistake or we're both right and i just need to simplify.

please tell me which of the following is the case and how to get to the correct answer.

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