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(Solution) - In problems show that each equation is an identity a tan xin 1x

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In problems, show that each equation is an identity
(a) tan(xin-1x) = x/?1-x2
(b) sin(tan-1x) = x/?1 + x2
(c) cos(2sin-1x) = 1 - 2x2
(d) tan(2tan-1x) = 2x/1-x2


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This question was answered on: Jul 11, 2017

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