Question

use a calculator and inverse functions to find the radian measures of the given angle round your answer to the nearest hundredth.angles whose sine is 0.54

Answer 1

$\begin{gathered} \text{ Let the angle be }\theta \\ \sin \text{ }\theta=0.54 \\ \theta=\sin ^{-1}0.54\text{ (in rad)} \\ \text{ From the calculator,} \\ \theta=0.57,\text{ and }\theta=-3.71 \\ \text{ This makes the correct option to be } \\ 0.57\text{ + 2pn and -3.71 + 2pn} \end{gathered}$

The answer is 0.57 + 2pn and -3.71 + 2pn