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## Homework Statement

Okay, so this is some trig I learned last year but have since forgotten. If you can give me the first step, I can solve the rest on my own. The given statement is true and you have to prove why using Pythagorean Identities.

csc

^{2}[tex]\alpha[/tex]-1 = cos

^{2}[tex]\alpha[/tex]

________

csc

^{2}[tex]\alpha[/tex]