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$Old$ 09-07-2008, 02:43 PM

weezie23 $weezie23 is offline$

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$Default$ Converting limits

I have $\int_0^3dx$ and sovle for trig it converts them to $\int_0^{\pi/4}dx$ How do I convert those - the answer to the problem is $9sec^3\theta-27sec\theta\mid_0^{\pi/4}dx$

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$Old$ 09-07-2008, 02:46 PM

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Originally Posted by weezie23 $View Post$

I have $\int_0^3dx$ and sovle for trig it converts them to $\int_0^{\pi/4}dx$ How do I convert those - the answer to the problem is $9sec^3\theta-27sec\theta\mid_0^{\pi/4}dx$

you need to say what the integrand is. it affects what the limits become

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