- #1

Gwyn

- 4

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I've been going over the book and everything was going well until I got to this question:

[tex]\frac{1} {2 + \sqrt{4 - x^2}} = \frac{2 - \sqrt{4 - x^2}} {x^2}[/tex]

Tried with partial fractions but that does not work. I also tried to split the fraction but I don't know how to get the x^2 at the bottom. In short I'm completely lost and that looks like black magic to me. I'd appreciate it if anyone has a link to explain what's going on here.

Edit: Messed up the latex. If you click on it the correct code shows up. Not sure how I can refresh the originally posted one.

[tex]\frac{1} {2 + \sqrt{4 - x^2}} = \frac{2 - \sqrt{4 - x^2}} {x^2}[/tex]

Tried with partial fractions but that does not work. I also tried to split the fraction but I don't know how to get the x^2 at the bottom. In short I'm completely lost and that looks like black magic to me. I'd appreciate it if anyone has a link to explain what's going on here.

Edit: Messed up the latex. If you click on it the correct code shows up. Not sure how I can refresh the originally posted one.

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