Question

a= -11 and b= -13 (proof that commutative property holds on in case of addition and does not holds in subtraction)​

Answer 1

Answer:

We know that 2+3=3+2,that is,whole numbers can be added in any order. The same is true for integers too. When we add any two integers, the order in which we add them does not change their sum. So we say that addition is commutative for integers. This property is called the Commutativity of addition. For Example:-

4+(-5)= -1;(-5)+4=(-1) and -1 is an integer.

For integers a and b, we can write:

a+b=b+a

Subtraction is not commutative for integers. For example:-

4-8=(-4)

For integers a and b, we can write:

a-b≠ b-a

Hope you understood