Find the minimum value of .

MATHEMATICS · Subjective · CBSE · Mathematics · Inverse Trigonometric Functions · Inverse Trigonometric Functions

Problem

Find the minimum value of sec⁡−1(x)+cos⁡−1(x)+sin⁡−1(x)+csc⁡−1(x)\sec^{-1}(x) + \cos^{-1}(x) + \sin^{-1}(x) + \csc^{-1}(x).

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