Question

write some rules of roster form​

Answer 1

Answer:

Roster or tabular form: In roster form, all the elements of a set are listed, the elements are being separated by commas and are enclosed within braces { }. For Example: Z=the set of all integers={…,−3,−2,−1,0,1,2,3,…}

Answer 2

Step-by-step explanation:

In this, elements of the set are listed within the pair of brackets { } and are separated by commas.

For example:

(i) Let N denote the set of first five natural numbers.

Therefore, N = {1, 2, 3, 4, 5} → Roster Form

(ii) The set of all vowels of the English alphabet.

Therefore, V = {a, e, i, o, u} → Roster Form

(iii) The set of all odd numbers less than 9.

Therefore, X = {1, 3, 5, 7} → Roster Form

(iv) The set of all natural number which divide 12.

Therefore, Y = {1, 2, 3, 4, 6, 12} → Roster Form

(v) The set of all letters in the word MATHEMATICS.

Therefore, Z = {M, A, T, H, E, I, C, S} → Roster Form

(vi) W is the set of last four months of the year.

Therefore, W = {September, October, November, December} → Roster Form

Note:

The order in which elements are listed is immaterial but elements must not be repeated.