posted by Abbey .
evaluate the trigonometric functions by memory or by constructing appropriate triangles for the given special angles.
a) csc 30 degrees
b) sin pi/4 = sqrt2 / 2
I just do not know how to find csc 30 degrees.
You should know that cscx = 1/sinx
= 1/sin 30
= 1/(1/2) = 2