The terminal side of a first angle in standard position contains the point
.
Consider radius at the point as
.
Find .
Pythagorean Theorem : .
Trigonometric function : .
The terminal side of a second angle in standard position contains the point
.
Consider radius at the point as
.
Find .
Pythagorean Theorem : .
Trigonometric function : .
.
Relationship between sines of and
is
.
Relationship between sines of and
is
.