Question

give an 50 examples for set​

Answer 1

Plz justify your question

which examples

set builder form ?

1)

A= {y/y is a colour of rainbow}

OR

A= {y/y = Red,Blue}

so in. this form you can take

Natural numbers

integers

days of week ,year,month

hours in clock etc..

thanks

Answer 2

Answer:

Step-by-step explanation: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

Let P is a set of counting numbers greater than 12;

the set P in set-builder form is written as :

P = {x : x is a counting number and greater than 12}

or

P = {x | x is a counting number and greater than 12}

This will be read as, 'P is the set of elements x such that x is a counting number and is greater than 12'

The symbol ':' or '|' placed between 2 x's stands for such that.

(ii) Let A denote the set of even numbers between 6 and 14. It can be written in the set builder form as;

A = {x|x is an even number, 6 < x < 14}

or A = {x : x ∈ P, 6 < x < 14 and P is an even number}

(iii) If X = {4, 5, 6, 7} . This is expressed in roster form.

Let us express in set builder form.

X = {x : x is a natural number and 3 < x < 8}

(iv) The set A of all odd natural numbers can be written as

A = {x : x is a natural number and x = 2n + 1 for n ∈ W}