SOLUTION: Prove that it is an identity 1) tan (1/2) A = csc A

SOLUTION: Prove that it is an identity 1) tan (1/2) A = csc A - cot A

Question 449320: Prove that it is an identity
1) tan (1/2) A = csc A - cot A
Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!
We know from trigonometry that , assuming x=A and
transforming the right side of the identity we get the left side:

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