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Eamcet Mathematics
Trigonometry Hyperbolic Functions

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Q.

If -π/2 < x < π/2, then the value of log sec x is

A.
2 coth^-1 ( cosec² x/2 - 1)

B. 2 coth^-1 ( cosec² x/2 + 1)

C. 2 cosech^-1 ( cot² x/2 - 1)

D. 2 cosech^-1 ( cot² x/2 + 1)

E. None of the above

View Answer

Correct choice: A

Explanation:

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