Question 11 If x + 0 = 0 + x = x, which is rational number, then 0 is called: (a) identity for addition of rational numbers. (b) additive inverse of x. (c) multiplicative inverse of x. (d) reciprocal of x.
given (x+y+z)*(ab+1)=1 find the value of z if x is additive inverse of y and a is multiplactive inverse of b.