Solution Found!
Which of the following binary operations are associativea.
Chapter 2, Problem 2E(choose chapter or problem)
QUESTION:
Problem 2E
Which of the following binary operations are associative?
a. multiplication mod n
b. division of nonzero rationals
c. function composition of polynomials with real coefficients
d. multiplication of 2 × 2 matrices with integer entries
Questions & Answers
QUESTION:
Problem 2E
Which of the following binary operations are associative?
a. multiplication mod n
b. division of nonzero rationals
c. function composition of polynomials with real coefficients
d. multiplication of 2 × 2 matrices with integer entries
ANSWER:
Step 1 of 4
a) The operation of multiplication mod is associative since