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Prove the identity. cot(x - y) = Use a Reciprocal Identity, and then use a Subtraction Formula. 1 cot(x - y) = 11 cot(x)
Prove the identity. cot(x - y) = Use a Reciprocal Identity, and then use a Subtraction Formula. 1 cot(x - y) = 11 cot(x) cot(y) + 1 cot(y) - cot(x) = 11 tan( Use a Reciprocal Identity, and then simplify the compound fraction. (cot(x))(cot(y)) 1 cot(y) tan(x) - tan(y) + tan(x) tan(y) 1 cot(x) cot(x) cot(y) cot(y) - cot(x) cot(x) cot(y) + -
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Discrete Mathematics and Its Applications
Authors: Kenneth H. Rosen
7th edition
0073383090, 978-0073383095
