Question

The binary operation is defined as
a b= ab + (a + b), where a and b are any two
real numbers. The value of the identity element
of this operation, defined as the number x such
that a x = a, for any a, is
(a) o
(b) 1
(c) 2
(d) 10
​

Answer 1

Answer:

x=1 ,

a×1= a .

so, option (b) is correct .