Question

Determine the exact value of the following.

a) sin300 degress
b) tan (-135 degrees)
c)csc150 degrees
d) sec45 degrees
e) cos 4pi/3
f) sin (-3pi/4)

Answer 1

draw the triangles in standard position. They are all either 45-45-90 of 30-60-90.

Those values you know, right?