Question

How do I rationalize the denominator and simplify it? https://secure.aleks.com/alekscgi/x/math2htgif.exe/NM?%3Fal%7B%3D%3Fprqw%3D22%3F%2Cprqw%3D%23%2E%23%3Fprqw%3D1%3F%2Cprqw%3D%3Flufq%3D%3Fprqw%3D22%3F%2Cprqw%3D%23%28%23%3Fprqw%3D1%3F%2Cprqw%3D%3F%2Cal%7B%3D

Answer 1

multiply by it's conjugate. so it's
sqrt of 11- sqrt of 2

Answer 2

I got \[\frac{ \sqrt{121}+\sqrt{4}}{ \sqrt{121-\sqrt{4}}}\] Which would equal \[\frac{ 11+2 }{ 11-2 } = \frac{ 13 }{ }\] Is that right?

Answer 3

13/9