The function is , Quadrant II.
(Definition of sin)
Here y is positive in Quadrant II and r is positive,.
Using the Pythagorean theorem, To find the r.
\ (Apply Pythagorean theorem)
(Substitute
)
Subtract 1 from each side.
\Take square root each side.
\Find the six trigonometric functions.
\Substitute these values .
,
,
,
,
,
,
.
The angles are ,
,
,
,
,
.