# precalculus

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Verify the identity.

csc t − sin t/csc t= cos2 t

• precalculus -

You are missing a parenthesis !!!
I assume that you mean:

(csc t - sin t)/csc t

(1/sin t - sin t) /(1/sin t)

(1 - sin^2 t) / 1

cos^2 t

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