Question 9 (3 points) Use special triangles to show that the following are true: (write as exact values equating to each other for example 1/2=1/2 or V3=V3 - see tutorial for how to copy and paste sqaure root symbols from written response question) #1 sin (2250) = sin (-450) #2 cos (30) = cos (-309) #3 tan (-609) = tan (120)