Q64 / 160 · AP EAMCET 2022 (04 Jul Shift 1) · Mathematics

If $cosech x = \frac{4}{5}$ , then $\sinh x =$

A
$\frac{4}{5}$
Correct answer
B
$\frac{5}{4}$
C
$\frac{2}{3}$
D
$\frac{2}{5}$

Solution

We know that,
$\sin h x = \frac{1}{cosech x}$
Now using the above relation we get,
$cosech x = \frac{1}{\frac{4}{5}} = \frac{5}{4}$

Hence, the correct answer is option: 'B'.

Relevant Questions