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Question
The value of Cos h-1 x is:
Options
log `("x" - sqrt("x"^2 - 1))`
log `("x" + sqrt("x"^2 - 1))`
log `("x" + sqrt("x"^2 - 1))`
log `("x" - sqrt("x"^2 + 1))`
MCQ
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Solution
log `("x" + sqrt("x"^2 - 1))`
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Logarithm and Function (Entrance Exam)
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