an operation * is defined by the equation:
a*b=a-b/a+b, for all numbers a and b such that a is not equal to -b, if a is not equal to -w and a*w=0, then w=? Select.
A) a) -a  B) b) -1/a  C) c) 1/a  D) d)0  E) e)a
If a*w=0 and a=-w then a-w = o of a=w, so answer e)a
<result>E</result>
an operation * is defined by the equation:
a*b=a-b/a+b, for all numbers a and b such that a is not equal to -b, if a is not equal to -w and a*w=0, then w=?