Q5 of 71 Page 14

Write the following sets in Descriptive form

i. A = {a, e, i, o, u}


ii. B = {1, 3, 5, 7, 9, 11}


iii. C = {1, 4, 9, 16, 25}


iv. P = {x : x is a letter in the word ‘set theory’}


v. Q = {x : x is a prime number between 10 and 20}

i. A is the set of all vowels of English alphabet.


ii. B is the set of all positive odd numbers less than 12.


iii. C is the set of all square numbers less than 26.


iv. P is the set of all the letters in the word ‘set theory’


v. Q is the set of all prime numbers between 10 and 20.


More from this chapter

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3

Write the following sets in Set-Builder form

i. The set of all positive even numbers


ii. The set of all whole numbers less than 20


iii. The set of all positive integers which are multiples of 3


iv. The set of all odd natural numbers less than 15


v. The set of all letters in the word ‘computer’

 4

Write the following sets in Roster form

i.


ii.


iii. C = {x : x is a prime number and a divisor of 6}


iv.


v.


vi.

6

Find the cardinal number of the following sets

i.


ii. B = {x : x is a consonant in English Alphabet}


iii. X = {x: x is an even prime number}


iv.


v.

7

Identify the following sets as finite or infinite

i. A = {4, 5, 6, ...}


ii. B = {0, 1, 2, 3, 4, ... 75}


iii. X = {x : x is an even natural number}


iv. Y = {x : x is a multiple of 6 and x > 0}


v. P = The set of letters in the word ‘freedom’