I need help with this:

Rationalize the denominator:

Thanks in advance :)

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- Jun 29th 2009, 05:28 AMCuelguyRationalize the denominator
I need help with this:

Rationalize the denominator:

Thanks in advance :) - Jun 29th 2009, 05:37 AMpfarnall
- Jun 29th 2009, 05:45 AMCuelguy
- Jun 29th 2009, 05:49 AMpfarnall
- Jun 29th 2009, 05:58 AMCuelguy
- Jun 29th 2009, 06:19 AMskeeter
$\displaystyle \frac{\sqrt{6}+\sqrt{5}}{\sqrt{6}-\sqrt{5}} \cdot \frac{\sqrt{6}+\sqrt{5}}{\sqrt{6}+\sqrt{5}} = \frac{6 + 2\sqrt{30} + 5}{6 - 5} = 11 + 2\sqrt{30}$

- Jun 29th 2009, 07:48 AMpfarnall
Yes you had it all, you just need to learn that $\displaystyle \sqrt{a}\sqrt{b}=\sqrt{ab}$ (also that 6-5=1 but I'm sure you know that already)