If A and B are 2 sets then represent (A-B)complement using a venn diagram ?

Now A-B is nothing but elements that are in A but not in B.

It can graphically shown as,

So ${\left(A-B\right)}^{\text{'}}=U-\left(A-B\right)$ now this region will be all the region that is not in A-B so,

It can be shown as below,

Here coloured region is the required region.

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