Question

the movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer. what is the value of sec 39° to the nearest thousandth? 1.287 3.750 0.629 1.589

Explanation:

Step1: Recall secant definition

Recall that $\sec\theta=\frac{1}{\cos\theta}$. So, we need to find $\cos(39^\circ)$ first.

Step2: Calculate cos(39°)

Using a calculator, $\cos(39^\circ)\approx0.7771$.

Step3: Find sec(39°)

Then, $\sec(39^\circ)=\frac{1}{\cos(39^\circ)}\approx\frac{1}{0.7771}\approx1.287$.

Answer:

1.287