Question

31) ( f(x)=3 / sin x|-2| cos x mid )
Maxemcem ( =3 quad ) At ( x=pi / 2 )
menimum ( =-2 quad ) At ( x=0 )
( operatorname{Rang}=[-2,3] quad ) Ans ( b )

# The range of the function f(x) = 3 sinx1-2 cosxlis (a) [-2 V13] (b) 1-2, 3] (c) [3, 13] (d) none of these

Solution