Determine whether the function value is positive, negative, zero or undefined.

tan 25 degree = my answer = positive?

cot Pi = how do you get this?

cos -2pi/5 = negative?

sin -pi/2 = negative?

csc 0 = how do you get this?

Also I have a issue with another part of the worksheet, it says determine the quadrant the pheta terminates...

how do i get this?

a couple of the problems are

1.) 6 radians

2.) cos pheta <0, sin pheta <0

how do you solve those?