In which quadrant the terminal side of the angle x lie for s

In which quadrant the terminal side of the angle x lie for sin x

Solution

6) = 8/3

=(6 +2)/3

=2 +(2/3)

so = 2/3, = 8/3 are co terminal

7)sin<0 in Q_III, Q_VI

terminal side of lie in Q_III or Q_VI

8)tan=-1

least positive angle is =3/4

9)sin=-1/2

least positive angle is =5/4