Question

Verify that (a+b)+c = a+(b+c) by taking a = -1, b =(-2/3) and c = -3/4​

Answer 1

Answer:

(a+b)+c=(-1+(-2/3))+(-3/4)

=(-5/3)-3/4

=-29/12

now ...

a+(b+c)=-1+((-2/3)+(-3/4))

=-1+(-17/12)

=-29/12

• therefore

(a+b)+c=a+(b+c)