CLASS_11_MATHS_SOLUTIONS_NCERT

Class XI Chapter 1 – Sets Maths
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(iv) 2, 4,6....
It is a set of all even natural numbers.
2,4,6.... x: xis an even natural number
1, 4,9...100
(v)
It can be seen that
2 2 2 2
11 ,4 2 ,9 3 ...100 10 .
1,4,9...100 x : x n 2 , n N and1 n 10
Question 5:
List all the elements of the following sets:
(i)
(ii)
(iii)
(iv)
(v)
(vi)
A
x : xis an odd natural number
1 9
B x : x is an integer; x
2 2
C x x x
D
E
2
: isaninteger; 4
x : x is a letter in the word"LOYAL"
x : xis a month of a year not having 31days
F x : xis a consonant in the English alphabet which precedes k
Solution 5:
(i)
(ii)
A
x : xis an odd natural number 1,3,5,7,9...
1 9
B x : xisan integer; n
2 2
It can be seen that
B
(iii)
0,1, 2,3, 4
1
0.5
2
C x x x
It can be seen that
and
2
: isaninteger; 4
2 2 2
9
2 4.5
1 1 4; 2 4 4; 3 9 4
2
0 0 4
2
1 1
4
2
2 4 4
2
3 9 4
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