What a truly fascinating little rational expression. Apparently you didn't bother to read the instructions for posting (or presumed you are too important, busy, or whatever to be bothered with such mundane nonsense to bother reading, understanding, or following them). I know this because you did not:
1. State the instructions for the problem
2. Explain what it is about the problem that is giving you difficulty
or
3. Describe what you have already tried
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it