Q. 15 - Precalculus Enhanced with Graphing Utilities

Question

Use a calculator to evaluate the expression$sec229°$ Round your answer to three decimal places.

Step-by-Step Solution

Answer

$sec229°=-1.524$

Step 1. Use of calculator

First we have to set the mode of calculator so that calculator can solve the Trigonometric functions. 

Step 2. Calculations

sec229$°$=$\frac{1}{\cos 229°}$=$-\frac{1}{0.656059029}$

=$-$1.5242530867

Step 3. Round the result to 3 decimal places

-1.5242530867 $\approx -$1.524