Answer
$0.3898$
Work Step by Step
Step 1: We ensure that the calculator is in radian mode.
Step 2: $\cos s=0.9250$ can be written as $s=\cos^{-1} 0.9250$
Step 3: Using the inverse cosine function in the calculator, we type $\cos^{-1} 0.9250$ into the calculator and solve.
Step 4: $s=\cos^{-1} 0.9250\approx0.3898$
