Let be an angle in standard position with
a point on the terminal side of
and
.
,
,
,
,
, and
.
The trigonometric function and
.
The function is positive in QI and QII. \ \
From the given data is negative. \ \
The function is negative QII and QIV. \ \
So the angle terminates in QII.
Since ,
.
Find the value of .
Consider .
,
,
, \ \
,
.
The remaining trigonometric functions are ,
,
,
, and
.