Set a and b have 3 and 6 elements

Asked by admin @ 23/08/2021 in Math viewed by 321 People

Set A and set B have 3 and 6 elements respectively what can be the minimum number of elements

in A ∪ B-
(a) 3 (b) 6 (c) 9 (d) 18

Answered by admin @ 23/08/2021

When we say union then it means we have to club the 2 sets such that every element from both sets come only once for ex
set a=1,2,3
set b=3,4,5,6
then aub is 1,2,3,4,5,6
all elements from both sets written once
so if a set has 3 and 6 elements then minimum elements will be 6
for ex a=1,2,3
b=1,2,3,4,5,6
aub=1,2,3,4,5,6
thank you

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