Question

If U={ 1,2,3,4,5....,10} A={1,2,3,4,5} A∆B°{1,2,3,4} then n(B-A) is​

Answer 1

Answer:

b ={ 5,6,7,8,9,10} -{1,2,3,4,5}

{6,7,8,9,10}