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Arccos and Arctan

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Show step by step how the left side equals the right side.

trigonometric-identities
simplify-expressions

asked Jan 16, 2015 in TRIGONOMETRY by anonymous

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The left hand side of the equation = .

Let , then .

The trigonometric function : .

.

Pythagorean identity : .

The trigonometric function :.

= right hand side of the equation.

answered Jan 18, 2015 by bradely Mentor

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