Explain, in one concise sentence, why the derivative of ( x ) is negative for every…

MATHEMATICS · Subjective · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

Explain, in one concise sentence, why the derivative of arccos⁡x\arccos x is negative for every xx in the open interval (−1,1)(-1,1).

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