If , then…

MATHEMATICS · Subjective · AP · Calculus AB · Differentiation: Composite, Implicit, and Inverse Functions · Differentiation: Composite, Implicit, and Inverse Functions

Problem

If y=cos⁡−1(x−x−1x+x−1)y = \cos^{-1} \left( \frac{x - x^{-1}}{x + x^{-1}} \right) , then dydx\frac{dy}{dx} is

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