Oliver Spryn
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 Mar12 comment Integration: How to Begin? The only problem is, that I don't understand why this works (or really how to set it up) since we aren't working with a square root here. Mar12 comment Integration: How to Begin? Whoops, fixed. ;) Mar12 revised Integration: How to Begin? edited tags Mar12 comment Why Doesn't This Integral $\int \frac{\sqrt{x^2 - 9}}{x^2} \ dx$ Work? Fixed the above work. Interestingly, it only resulted in a few sign changes. Any further ideas? Mar12 revised Why Doesn't This Integral $\int \frac{\sqrt{x^2 - 9}}{x^2} \ dx$ Work? deleted 52 characters in body Mar12 comment Integration: How to Begin? What a coincidence that this question was posted on the same day as mine. Wonder if we're working from the book, at the same time, (from the same school, in the same class)? lol Thank you, Sivaram Mar12 comment Why Doesn't This Integral $\int \frac{\sqrt{x^2 - 9}}{x^2} \ dx$ Work? (cold chills) ... yes, your right, let me try re-evaluating Mar12 asked Integration: How to Begin? Mar12 asked Why Doesn't This Integral $\int \frac{\sqrt{x^2 - 9}}{x^2} \ dx$ Work? Mar5 comment Divide inside a Radical That really makes everything clear. Thank you! Mar4 comment Divide inside a Radical Actually, I understand your comment. :) But if you would like to learn how to make square roots, fractions, powers, etc... you can do that by typing to dollar signs in a row, then between the dollar signs, type in LaTeX code. If you are not familiar with LaTeX, Wikibooks has an article on it: en.wikibooks.org/wiki/LaTeX For a quick start, just click the "edit" link underneath my original post, and you can see how I did it. ;) Mar4 accepted Divide inside a Radical Mar4 comment Divide inside a Radical I see your comment now. Thank you for the additional details! Mar4 comment Divide inside a Radical Yes, you're right, according to WolframAlpha: wolframalpha.com/input/… Could you please explain this a bit better so that it would, perhaps, stick better with me? Mar4 asked Divide inside a Radical Mar3 awarded Self-Learner Mar3 comment Find $\int e^{2\theta} \cdot \sin{3\theta} \ d\theta$ Thanks David. ;) Mar3 answered Find $\int e^{2\theta} \cdot \sin{3\theta} \ d\theta$ Mar3 comment Choices for Integrationg by Parts Hmmm... would $\frac{1}{{\left(2x + 1\right)}^{2}}$ have worked as u and $x \cdot e^{2x} \ dx$ as dv? Mar3 asked Find $\int e^{2\theta} \cdot \sin{3\theta} \ d\theta$