Question

If the universal set is U= (x | x € N, x < 6) and A=(x | x is a prime factor of 420) then write the A in the tabular form. 6.​

Answer 1

Step-by-step explanation:

Here the universal set in tabular form is

U = {1,2,3,4,5}

now if we find all prime factors of 420, we will get 2,3,5,7 as it's prime factors, because 420= 2x2x3x5x7

However the universal set U only includes five natural numbers which are 1,2,3,4,5. Hence A cannot contain numbers other than the numbers in U. Hence , we have to exclude number 7 from A.

Therefore, set A in tabular form will be

A = { 2,3,5}.

Hope above solution helps.