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If ‘ $x$ ’ is a negative real number then the value of $C o s^{- 1} x + S e c^{- 1} x$ is

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detailed solution

Correct option is B

x=−1 only satisfies ∴Cos−1x+Sec−1x=π+π=2π, an irrational number

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If ‘x’ is a negative real number then the value of Cos−1x+Sec−1x is

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If ‘ $x$ ’ is a negative real number then the value of $C o s^{- 1} x + S e c^{- 1} x$ is