Help with me this question please

label Calculus
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Oct 16th, 2017

Use Chain rule.  I start by letting u=sec theta+tantheta so du= sectheta tantheta+sec^2 theta

then have derivative of u^(-3)

which is -3u^(-4) du by power rule, plug in u and du and get

r'=-3(sec theta+tantheta)^(-4) *(sectheta tantheta+sec^2)

Hope this helps! Please best me if it does!

May 12th, 2015

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Oct 16th, 2017
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Oct 16th, 2017
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