Class 11 Maths Sets Difference of Sets

Difference of Sets

The difference of the sets A and B in this order is the set of elements which belong to A but not to B. Symbolically, we write A – B and read as “ A minus B”. A – B = { x : x ∈ A and x ∉ B }

Example Let A = { 1, 2, 3, 4, 5, 6}, B = { 2, 4, 6, 8 }. Find A – B and B – A

Solution: 

A-B= {1,3,5}

B-A ={ 8}

Note that The sets A – B, A ∩ B and B – A are mutually disjoint sets.

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