Question

write the following set in the tabular form A={x|x is prime factor of 210}​

Answer 1

Step-by-step explanation:

(i) Factors of 12 are 1,2,3,4,6,12. So, the prime factors of 12 are 2,3.

    We write the set A in roster form as A={2,3} and hence n(A)=2.

(ii) B={x:x∈W,x≤5}. In Tabular form, B={0,1,2,3,4,5}. 

The set B has six elements and hence n(B)=6