Question:medium

If $\sinh x = \frac{3}{4}$, then $\cosh 2x =$

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Hyperbolic trigonometric identities are very similar to standard ones but watch out for sign differences ($\cosh^2 x - \sinh^2 x = 1$ and $\cosh 2x = 1 + 2\sinh^2 x$).

Updated On: Oct 5, 2026

$\frac{17}{8}$
$\frac{15}{8}$
$\frac{9}{8}$
$\frac{25}{8}$

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The Correct Option is A

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