MCQ
$\sec ({\rm{cose}}{{\rm{c}}^{ - 1}}x) =\ . . ..$
  • ${\rm{cosec}}({\sec ^{ - 1}}x)$
  • B
    $\cot x$
  • C
    $\pi $
  • D
    એકપણ નહીં.

Answer

Correct option: A.
${\rm{cosec}}({\sec ^{ - 1}}x)$
We know that $\sec\ (\text{cosec}\ -1x) = \text{cosec}\ (\sec-1 x)$
$ = \frac{{|x|}}{{\sqrt {{x^2} - 1} }}$, for $|x|\, > \,1$.

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