In the set of integers under the operation `**` defined by `a ** b = a+b-1`. Find the identify element.

In the set of integers under the operation * defined by a * b =a+b-5 then identity is:

On the set Z of integers,if the binary operation * is defined by a*b=a+b+2 then find the identity element.

For the binary operation * on Z defined by a*b= a+b+1 the identity element is

On the set Z of integers, if the binary operation * is defined by a*b= a+b+2 , then find the identity element.

In the set of integers with operation ** defined by a**b=a+b-ab , the value of 3**(4**5) is…....

Let Z be the set of all integers, then , the operation * on Z defined by a*b=a+b-ab is

Let ** on the set integers I be a binary operation defined by a**b=3a+4b-2 . Find 4**5 .

On the set Q^+ of all positive rational numbers if the binary operation * is defined by a * b = 1/4ab for all a,b in Q^+ find the identity element in Q^+ .

If the binary operation * on the set Z of integers is defined by a * b = a+B - 5, then write the identity element for the operation * in Z.

Let * be a operation defined on the set of non zero rational numbers by a * b = (ab)/4 Find the identity element.