In order to prevent confusion that may be caused by reading this problem written through keyboard text, I have written the identity in microsoft paint here:

gyazo. com/3afe07a6067e467d3776dd8b64ccac91

I need to find three different ways (Different meaning beginning each proof with a different strategy such as "multiply by conjugate") to prove that this identity is correct, but anything less than that is appreciated! Cheers

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