Chapter 12.4, Problem 29WE

To determine

Find the measure of acute angle $\left(\theta \right)$ for the function $\sec \theta =3.555$ to the nearest tenth of a degree.

Answer to Problem 29WE

The acute angle $\left(\theta \right)$ is $73.7°$ .

Explanation of Solution

Given information: The given function is $\sec \theta =3.555$ .

Calculation: The value of acute angle $\left(\theta \right)$ for the given function $\sec \theta =3.555$ is evaluated as,

  $\begin{array}{c}\sec \theta =3.555\\ \theta ={\sec }^{-1}\left(3.555\right)\\ =73.7°\end{array}$