(a)
\The trigonometric function value is .
Then is the quadrant
.
Find value.
From the pythogarean theroem,
\Since, is quadrant
is positive and
is negative.
Hence,
The value of
(b)
\The trigonometric function value is .
Then is the quadrant
.
Find value.
From the Pythagorean theorem,
\Since, is the quadrant
, then
is positive and
is negative.
The value of
(c)
\The trigonometric function value is .
Then is inquadrant
.
Find value.
From the Pythagorean theorem,
\Since, is in quadrant
, then
is positive and
are negative.
The value of
(d)
\The trigonometric function value is .
Then is inquadrant
.
Find value.
From the Pythagorean theorem,
\Since, is the quadrant
, then
is positive and
is negative.
The value of