Question

Show that if A ⊂ B, then C – B ⊂ C – A​

Answer 1

Let,

A = {1,2}, B={1,2,3}, C={1,2,3,4}

C-B = {1,2,3,4}-{1,2,3}

={4}

C-A = {1,2,3,4}-{1,2}

={3,4}

{4) subset {3,4}

So, C-B subset C-A

.... Plzzz mark the answer as brainliest