Question 1104467
Prove the identity:

csc^2 0tan^2 0 - 1 = tan^2 0
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csc^2*tan^2 - 1 = tan^2
(1/sin^2)*(sin^2/cos^2) - 1 = sin^2/cos^2
(1/sin^2)*(sin^2) - 1 = sin^2
1 - 1 = sin^2
Not an identity.