Sets | Class 9 | Practice Set 1.1

Sets | Class 9 | Practice Set 1.1

Sets Class 9 Practice Set 1.1, basic examples based upon the concept of sets are solved in a simple manner in this post.

Practice-set-1.1

In this post examples like writing sets in roaster form or in list method are asked to solve. We are also asked to write sets using rule method.

Also read : Linear Equations in two variables | Class 10 | Practice Set 1.1

There are some important rules needed to follow while writing the sets, they are as follows –

1. Set should always be written in a curly bracket.
2. After writing every entry in the set, we should give a comma.
3. Do not repeat any entries while writing the sets. If some entries are repeating then also write them only once.
4. Do not forget to close the curly bracket after writing all the entries.

The examples solved in above pdf file are given below :

(1) Write the following sets in roster form.
(i) Set of even natural numbers (ii) Set of even prime numbers from 1 to 50
(iii) Set of negative integers (iv) Seven basic sounds of a sargam

(2) Write the following symbolic statements in words.
(i) P = {p | p is an odd number}

Also read : Linear Equations in two variables | Class 10 | Practice Set 1.2

(3) Write any two sets by listing method and by rule method.

(4) Write the following sets using listing method.
(i) All months in the Indian solar year.
(ii) Letters in the word ‘COMPLEMENT’.
(iii) Set of human sensory organs.
(iv) Set of prime numbers from 1 to 20.
(v) Set of names of continents of the world.

(5) Write the following sets using rule method.
(i) A = { 1, 4, 9, 16, 25, 36, 49, 64, 81, 100}
(ii) B = { 6, 12, 18, 24, 30, 36, 42, 48}
(iii) C = {S, M, I, L, E}
(iv) D = {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}
(v) E = {a, e, t}