Question: Verify the identity. 1) csc u - sin u = cos u cot u - 2) tan .csc O = sec O 3) cot 2
Verify the identity. 1) csc u - sin u = cos u cot u - 2) tan .csc O = sec O 3) cot 2 x + CSC 2 x=2 csc 2 - 1 4) cos(a + b) cos a sin = cot B-tan a
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