find the identity element of a*b=ab/4
e * a = a * e = a is the condition for identity element
so e * a = e x a / 4 = a
e / 4 =1
e = 4
a* e = a x e / 4 = a
e / 4 = 1
e = 4
there fore identity element = 4
find the identity element of a*b=ab/4
e * a = a * e = a is the condition for identity element
so e * a = e x a / 4 = a
e / 4 =1
e = 4
a* e = a x e / 4 = a
e / 4 = 1
e = 4
there fore identity element = 4