Find the sine, cosine, and tangent of 360 degrees

  The values of son 360°, cos 360°, tan 360° are the same as the values of:
sin 0°, cos 0°, tan 0°:
  sin 360° = sin 0° = 0
  cos 360° = cos 0° = 1
  tan 360° = tan 0° = sin 0° / cos 0° = 0 / 1 = 0

It’s a because c makes no sense