which equation is represented by the intersection of the graphs below?
a. cosx=-1
b. secx=-1
c. tanx=-1
d. cscx=-1
![which equation is represented by the intersection of the graphs below a cosx1 b secx1 c tanx1 d cscx1 class=](https://us-static.z-dn.net/files/d16/14216b6746a06657b9f9253577eac7ee.jpg)