Answer :
Factoring:-
sin x( sin x + 1) = 0
sin x = 0 , or sinx + 1 = 0 giving sin x = -1
when sin x = 0 x = 0 , pi
when sin x = -1, x = pi + pi/2 = 3pi/2
solutions in given interval are 0,pi and 3pi/2
sin x( sin x + 1) = 0
sin x = 0 , or sinx + 1 = 0 giving sin x = -1
when sin x = 0 x = 0 , pi
when sin x = -1, x = pi + pi/2 = 3pi/2
solutions in given interval are 0,pi and 3pi/2