Q4 of 71 Page 14

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.

i. The required natural numbers are : 3, 4, 5, 6, 7, 8, 9, 10.


∴ The set in roster form A = {3, 4, 5, 6, 7, 8, 9, 10}


ii. The required integers are : 0, 1, 2, 3, 4, 5.


∴ The set in roster form B = {0, 1, 2, 3, 4, 5}


iii. The required prime numbers are : 2, 3


∴ The set in roster form C = {2, 3}


iv. The possible values of n : 1, 2, 3, 4, 5


∴ The values of x : 2, 4, 8, 16, 32


∴ The set in roster form X = {2, 4, 8, 16, 32}


v. The possible values of y = 0, 1, 2, 3, 4, 5


∴ The values of x : -1, 1, 3, 5, 7, 9


∴ The set in roster form M = {-1, 1, 3, 5, 7, 9}


vi. The possible values of x : -4, -3, -2, -1, 0, 1, 2, 3, 4


∴ The set in roster form P = {-4, -3, -2, -1, 0, 1, 2, 3, 4}


More from this chapter

All 71 →
2

Let A = {0, 1, 2, 3, 4, 5}. Insert the appropriate

i. 0 ____ A


ii. 6 ____ A


iii. 3 ____ A


iv. 4 ____ A


v. 7 ____ A

 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’

 5

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}

 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.