Question

Find the terminal point P(x, y) on the unit circle determined by the given value of t. 7a t= 4 P(x, y) = ( Need Help? Read It

Answer 1

Given data:

The given angle is θ=7π/4.

The given radius is r=1 unit.

The given angle can be written as,

θ=7π/4

=7(180°)/4

=315°

The expression for the x coordinate is,

x=1(cos315°)

=0.707 unit.

The expression for the y coordinate is,

y=1(sin315°)

=-0.707 unit

Thus, the coordinate of the point is (0.707, -0.707).