Let be an angle in standard position with
a point on the terminal side of
and
.
,
,
,
,
, and
.
The trigonometric function and
terminates in QIV.
Since terminates in QIV, the trigonometric functions cosine and secant are positive and remaining trigonometric functions are negative.
Since ,
.
Find the value of .
Consider .
.
Since terminates in QIV, consider the value of
.
,
,
,
,
.
The remaining trigonometric functions are ,
,
,
, and
.