Question

How does sin and cos value changes with 0, 90, 180, 270, 360?

Answer 1

sin90=cos0
1=1
sin0=cos90
0=0
sin270=cos180
-1=-1
sin180=cos270
0=0
sin360=cos270=sin180
0=0=0
cos360=sin90=cos0
1=1=1