Question

Verify (a+b)+c = a+(b+c) if a = 2,b = -2/3 and c = -3/4​

Answer 1

Step-by-step explanation:

a=2,b= -2/3, c= -3/4

=(a+b)+c

= (2-2/3)+(-3/4)

=(6-2/3)-3/4

=4/3-3/4

=16-9/12

=7/12

=a+(b+c)

= 2+(-2/3-3/4)

=2+(-2×4-3*3)/12

= 2+(-8-9)/12

=2+(-17/12)

=2-17/12

=24-17/12

=7/12

so 7/12=7/12

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