Question

class 7 math ch1 try these​

Answer 1

Step-by-step explanation:

Correct option is

C

{1, 2, 3}

Given, A={1,2,3} and B={4,5}.

Since A and B are two disjoint sets i.e. A∩B=ϕ then we've,

A−B

={1,2,3}.