https://webwork.math.ohio-state.edu/...7311241b11.png

what should I substitute here?

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- May 5th 2010, 03:58 AMmag6Trig substitution
https://webwork.math.ohio-state.edu/...7311241b11.png

what should I substitute here? - May 5th 2010, 04:09 AMpickslides
It might become more obvious if you complete the square in the denominator first... (Rofl)

- May 5th 2010, 04:14 AMmag6
- May 5th 2010, 04:33 AMpickslides
Try making $\displaystyle x+5 = 5\sec\theta \implies dx = 5\sec\theta \tan\theta$

- May 5th 2010, 04:54 AMmag6
- May 5th 2010, 05:29 AMmag6