The figure shows the terminal ray of angle
�
,
in standard position, intersecting the unit circle at point
�
in the
�
�
-
plane. The function
�
is given by
�
(
�
)
=
�
�
�
�
.
For the angle
�

(
not shown
)
,

�
2
<
�
<
�
.
Which of the following is true?