[" Question 1"],[" (i) Find the identity element in set of all rational numbers except- "1],[" with respect to* defined by "a*b=a+b+ab]

Find the identity element in the set of all rational numbers except -1 with respect to * defined by a*b=a+b+ab

Find the identity element in the set of all rational numbers except -1 with respect to * defined by a*b= a+b+a b .

Find the identity element in set Q^+ of all positive rational numbers for the operation * defined by a*b=(a b)/2 for all a , b in Q^+dot

Find the identity element in set Q^+ of all positive rational numbers for the operation * defined by a*b= (a b)/2 for all a , b in Q^+dot

Find the identity element in set Q^(+) of all positive rational numbers for the operation * defined by a^(*)b=(ab)/(2) for all a,b in Q^(+)

Find the identity element in the set I^+ of all positive integers defined by a*b= a+b for all a ,\ b in I^+ .

Find the identity element in the set I^(+) of all positive integers defined by a*b=a+b for all a,b in I^(+).

For each binary operation * defined below, determine the identity element. On Q^(+) , all positive rational numbers defined by a*b= (ab)/(2) .

Let Q be the set of all rational numbers and * be the binary operation , defined by a * b=a+ab for all a, b in Q. then ,

Find the identify element for the binary operation *, defined on the set of Q of rational number, by a * b =(ab)/(4)