Question

If a=-2/3,b=5/7 and c=-1/6 then show that a-(b-c) is not equal to (a-b)-c

Answer 1

Answer:

given a=-2/3,b=5/7,c=-1/6

a-(b-c)=-2/3-(5/7+1/6)=-75/42

(a-b)-c=(-2/3-5/7)+1/6=-31/42