The function f is defined by f(x)=-1/x for all nonzero numbers x. If f(a)= -1/2 and f(ab) =1/6, then b=
3
1/3
-1/3
-3
-12
3
1/3
-1/3
-3
-12
f(a)=-1/a=-1/2 hence we get a=2.
Similarly, f(ab)=-1/ab=1/6 so ab=-6. Substitute a=2 we get, b=-3
OA = D
-Deepak
