A 235711 B1357911SolutionAnswer to the above question AUB m

A = {2,3,5,7,11} B={1,3,5,7,9,11}

Solution

Answer to the above question:

AUB means union of distinct elements that belong to bot the set A and set B.

So, AUB = {1,2,3,5,7,9,11}

When we are asked to find the |AUB|, it means it is asking number of elements in set AUB.

So, in this problml, |AUB| = 7

Which is the required answer.