Question

Set {A-B} = {1,2} - {2,-4}= {1}. How

Answer 1

Here you go(◠‿◕). Long answer ahead....

Ans - 1

Pro Tip-

Whenever you solve any problem on Sets REMEMBER.

A VENN DIAGRAM EXPLAINS IT ALL!!!!!

A VENN DIAGRAM gives us a VISUAL representation of what we want to calculate....

So,

Here we have been given 2 sets containing 2 elements each.

The visual representation of it is given above.

By A-B we mean elements in A which are not in B.

For example, A has 5 chocolates. B has 3.

A-B = 3, which means that A has 3 chocolates which are not in B.

Here the shaded region i.e. 1 is not included in the other set.

So, A-B=1.

I Hope It Helps.

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