Question

8. For a = -12, b = 4,c=-25 find whether
a. a and b are closed under addition.
b. a + b + b + a
a +(b + c) = (a + b) + c
d. band care closed under subtraction
e. a-b=b-a​

Answer 1

Answer:

8

4

33=33

no

no

Step-by-step explanation:

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