a)The sign of cosine is determined by which coordinate(s) on the unit circle?
b)The sign of sine is determined by which coordinate(s) on the unit circle?
c)The sign of tangent is determined by which coordinate(s) on the unit circle?
a) The sign of cosine is determined by the x-coordinate on the unit circle.
b) The sign of sine is determined by the y-coordinate on the unit circle.
c) The sign of tangent is determined by both the x-coordinate and the y-coordinate on the unit circle.