Simplify this equation .

Identity:



So we can rewrite the denominator to get



Multiply numerator and denominator by . Several terms will cancel since . Also, . We get



Factorize the numerator, and write in terms of in the denominator to factorize it further to get



The factors cancel, leaving you with



which you could simplify a bit further by writing

)because it's going in order of the math sign

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