Chapter 4 - Graphs of the Circular Functions - Section 4.1 Graphs of the Sine and Cosine Functions - 4.1 Exercises - Page 148: 65

When $T = 2$, the point on the unit circle lies in the second quadrant. The x coordinate is $-0.416$ and the y coordinate is $0.909$ The point on the unit circle is $~~(-0.416, 0.909)$

$x = cos~T$ $y = sin~T$ When $T = 2$: $x = cos~T$ $x = cos~2$ $x = -0.416$ $y = sin~T$ $y = sin~2$ $y = 0.909$ When $T = 2$, the point on the unit circle lies in the second quadrant. The x coordinate is $-0.416$ and the y coordinate is $0.909$ The point on the unit circle is $~~(-0.416, 0.909)$