Question

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

Short answer

$sec229°=-1.524$

Step-by-step solution

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