Question

Q.1: (ii) Which operation is
commutative and associative for
Integers.
*​

Answer 1

Answer:

addition and multiplication

Answer 2

Answer:

addition and multiplication

$\huge\underline{solution}$

Integer →Property→ Addition→ Subtraction

Commutative Property→ x + y = y+ x→ x – y ≠ y – x

Associative Property→ x + (y + z) = (x + y) +z→ (x – y) – z ≠ x – (y – z)

Identity Property →x + 0 = x =0 + x→ x – 0 = x ≠ 0 – x

Closure Property →x + y ∈ Z→ x – y ∈ Z