Assertion $(A): \operatorname{cosech}^{-1}(3) = \log \left(\frac{1+\sqrt{10}}{3}\right)$
Reason $(R): e^{\operatorname{cosech}^{-1} x}$ is a root of the quadratic equation $x p^2 - 2p - x = 0$
The correct option among the following is

  • A
    $(A)$ is true,$(R)$ is true and $(R)$ is the correct explanation for $(A)$
  • B
    $(A)$ is true,$(R)$ is true but $(R)$ is not the correct explanation for $(A)$
  • C
    $(A)$ is true but $(R)$ is false
  • D
    $(A)$ is false but $(R)$ is true

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