Question

Evaluate sin 180. Round your answers to the nearest hundredth if necessary.

Answer 1

you can get an exact value though... why do you want to find an approximation ?

Answer 2

sin(180)=sin(90+90)=sin(90)cos(90)+cos(90)sin(90)=2cos(90)sin(90)

sin(90)=1
cos(90)=0

Hence

2cos(90)sin(90)=2(0)(1)=0

Answer 3

This may help you as well if your a visual person, long as you know your trig ratios :)