Explain in one or two sentences why the derivative of is negative for all in the…

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

Problem

Explain in one or two sentences why the derivative of

y=\arccos x

is negative for all

x

in the interval

(-1,1)

Related theory

Advanced Differentiation
Derivatives of standard functions via chain rule
Derivatives of inverse trigonometric functions
Continuity and Differentiability

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