Question

A={1234} ; B={4567} ; C={4567}
Then prove that
(A-B)-C is not = A-(B-C)

Answer 1

Answer:

A ={1234} - B= {4567 }= A-B ={123567 }

A-B= {123567} - C= 4567 = A-B-C = 123

B-C = { } A = 1234

A-{B-C} = { } - 1234

= 1234

so {A-B}-C = 123

A-{B-C} = 1234

THEY ARE NOT EQUAL

Step-by-step explanation:

I HOPE IT MAY HELP YOU