Question 17
Binary Operations⊗ | k | l | m
k | l | m | k
l | m | k | l
m | k | l | m
The identity element with respect to the multiplication shown in the table above is
- A.k
- B.l
- C.m
- D.o
Show the answer and explanation
Answer: C (m)
Explanation
The row for m reads k, l, m, the same as the column headings, so combining m with any element leaves it unchanged. m is the identity.