Question

A = { X:X ∈ N and 3 ≤ X ≤ 6}. Write the set A in tabular form. Find its cardinality and write all the subset of A. ​

Answer 1

Answer:

x=3n

where n is a natural number and n<8

So, n can be any digit from 1,2,3,4,5,6,7

So, in roster form

A={3,6,9,12,15,18,21}

Cardinal number = no. of distinct elements in the Set=7

Step-by-step explanation:

please mark me as brainliest