Question

For x=-2/9,y=-4/7,z=5/14, show that x -(y-z) not equal to (x-y)-z
Step by Step​

Answer 1

here

x=2/9

y=4/7

z=5/14

so, here

x-(y-z)

=2/9-(4/7-5/14)

=2/9-3/14

=1/126

But when,

(x-y) -z

=(2/9-4/7) -5/14

=-22/63-5/14

=-1/126