Select all that have negative values.
1.) cot (pi)
2.) csc(5pi/4)
3.)sec(-65 degrees)
4.)csc(340 degrees)
5.)sec(120 degrees)

Ithink is a. true, but not sure

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.