An operation * is defined by the equation a*b = a-b/a+b, for all numbers a and b such tht
a doesnt equal -b
a doesnt eual -c
a*c = 0
then c =
-a
-1/a
0
1/a
a
E
a doesnt equal -b
a doesnt eual -c
a*c = 0
then c =
-a
-1/a
0
1/a
a
E
