Repost using parentheses so that it is clear what belongs in the denominator of the fraction. It is unclear whether you mean or . Also, use sqrt(φ) with the appropriate argument inside of the parentheses to indicate square root.
It is also unclear as to what you want to do with the expression once you have it properly written. In fact, I highly recommend that you read and re-read the instructions for posting questions on this site until they are clearly understood before you repost your problem.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it