Q. 70 - Precalculus Enhanced with Graphing Utilities

Question

Use a calculator to find the approximate value of each expression rounded to two decimal places.

$\sin \frac{\pi }{8}$

Step-by-Step Solution

Answer

The approximate value of the given expression is 0.38.

Step 1. Given information.

The given expression is:

$\sin \frac{\pi }{8}$

Step 2. Determine the approximate value.

First, set the MODE to receive radians in the calculator, then find the value rounded to two decimal places.

$\begin{array}{rcl}\sin \frac{\pi }{8}& =& 0.38268...\\ & \approx & 0.38\end{array}$

Step 3. Conclusion.

The approximate value of the given expression is 0.38.