Posted by Amanda on Tuesday, May 17, 2011 at 9:20am.
Use a graph of the cosecant function to find the value of theta for which csc theta equals 1.

trig  Reiny, Tuesday, May 17, 2011 at 9:25am
Go up to 1 on the vertical axis
go horizontally until you cross or meet the graph
 read the corresponding value on the horizontal axis (should be π/2 or 90°)