Question

Write with reasons, which of the following sets are finite or infinite.
(i) A = { x|x<10,x is a natural number}
(ii) B = {y|y<-1,y is an integer}
(iii) C = Set of students of class 9 from your school.
(iv) Set of people from your village.
(v) Set of apparatus in laboratory
(vi) Set of whole numbers
(vii) Set of rational number

Answer 1

Answer:

Step-by-step explanation:

(i) A = { x|x<10,x is a natural number}  

Finite    as it will end at 9  < 10

(ii) B = {y|y<-1,y is an integer}  

infinite    will go upto -∞

(iii) C = Set of students of class 9 from your school.

Finite  as there will be a fixed number of students in class

(iv) Set of people from your village.  -  Finite

(v) Set of apparatus in laboratory.   - Finite

(vi) Set of whole numbers   - Infinite  -∞ to + ∞

(vii) Set of rational number - Infinite

Answer 2

Answer:

set of people from your village