(a)
\ to
is quadrant I.
to
is quadrant II.
to
is quadrant III.
to
is quadrant IV.
The angle is .
Just compare the fraction with the to the fractions.
The fraction is between 0 and
.
Thus, is in quadrant I.
(b)
\The angle is .
Just compare the fraction with the to the fractions
The fraction is between 1 and
.
Thus, is in quadrant III.
(a) The angle is in quadrant I.
(b) The angle is in quadrant III.