# Math Help - cos(x) to sec(x)

1. ## cos(x) to sec(x)

If cos(x) = -0.6, find the value of sec(x) accurate to two decimals

do you know the definition of sec = secant?

I had not known it but I looked for it quick.

3. Hint: $\sec(x) = \frac{1}{\cos(x)}$

4. So, $\frac{1}{\cos(x)}$= $\frac{1}{-0.6}$=-1.66666667 $\Box$.

5. Originally Posted by Erdos32212
So, $\frac{1}{\cos(x)}$= $\frac{1}{-0.6}$=-1.66666667 $\Box$.
Keep it accurate to 2 decimal places.