What is the identity element for multiplication?
0
1
-1
As we learned
Identity Binary operation -
a * e = a = e * a,∀ a ∈ A
- wherein
e is called the identity element.
a x 1=1 x a=a
Thus identity element =1
Option 1)
0
Option 2)
Option 3)
1
Option 4)
-1
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