Form 1 : Chapter 11 Introduction of Set

Which of the following terms is used to refer to an object in a set?

• element

• subset

• empty set

R = { 5, 10, 15, 20} which is not true about the given set?

• 5 ∈ R

• 20 ∈ R

• 25 ∈ R

• 15 ∈ R

How many elements does the set of whole numbers less than 5?

• 4

• 3

• 1

• 5

A = {letters in the word 'MERDEKA'}

• A = {M, E, R, D , E , K , A}

• A = {M, R, D, E, K, A}

B = (factors of 15}. Find the value of n(B)

• 1

• 2

• 3

• 4

C = {2, 4, 6, 8, 10}. Therefore n(C) =

• 2

• 4

• 5

• 10

D = {x : x is odd numbers less than 10}. What is x ?

• 6

• 7

• 8

• 9

E = {x : x is perfect square, 1 ≤ x ≤ 10}

•  $9\ \ ϵ\ \ E$ 

•  $8\ \ ϵ\ \ E$ 

Describe the set of letters in the word "MALAYSIA" using listing method

• {M, A, L, A, Y, S, I, A}

• {M, A, L, Y, S, I}

• (M, A, L, Y, S, I)

• [M, A, L, Y, S, I]

What is set?

• A collection of data that are classified into any group

• A collection of elements written using braces

• A collection of elements having the same characteristics

• A collection of data obtained through some experiments