Question

fina a solution with theda in radians. 3costheda÷0.714

Answer 1

The given expression is

$3\cos \theta=0.714$

First, we divide the equation by 3

$\begin{gathered} \frac{3\cos \theta}{3}=\frac{0.714}{3} \\ \cos \theta=0.238 \end{gathered}$

Then, we find theta

$\begin{gathered} \theta=\cos ^{-1}(0.238) \\ \theta=1.33\text{rad} \end{gathered}$

Hence, the angle measures 1.33 radians.