Question 1004703
i found 3.


you can see them on the following graph that is displaying the absolute value of secant(x).


secant is equal to 1 / cosine.


if the cosine is 1, then the secant will be 1/1 = 1.


if the cosine is -1, then the secant will be 1/-1 = 1


if you graph cosine(x), you will see that cosine(x) is equal to 1 at x = 0 and 2pi, and cosine(x) is equal to -1 at x = pi.

the graph is shown below:


<img src = "http://theo.x10hosting.com/2015/111801.jpg" alt="$$$" </>


if you graph the absolute value of cosine(x), you will see that the absolute value of cosine(x) is equal to 1 at x = 0, pi, and 2pi.


<img src = "http://theo.x10hosting.com/2015/111802.jpg" alt="$$$" </>


if you graph secant(x), you will see that the secant is 1 at x = 0 and 2pi, and it is equal to -1 at x = pi.


<img src = "http://theo.x10hosting.com/2015/111803.jpg" alt="$$$" </>


if you graph absolute value of secant(x), you will see that the absolute value of secant(x) is equal to 1 at x = 0, pi, and 2pi.


<img src = "http://theo.x10hosting.com/2015/111804.jpg" alt="$$$" </>