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.
Fill in the blanks : (i) Additive inverse of −5−12=...... .(ii) −5−12+its additive inverse=...... .(iii) Ifabisadditiveinverseof−cd,then−cdisadditiveinverseof..... .Alsoab+(−c)d+ab=...... .
In the equation ax+by+c=0, if y= (cx+d)b then x =