CHAPTER 1 SET LANGUAGE
Authored by Bagavathy Kumar
Mathematics
9th Grade
Used 321+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is correct?
{7} ∈ {1,2,3,4,5,6,7,8,9,10}
7 ∈ {1,2,3,4,5,6,7,8,9,10}
7 ∉ {1,2,3,4,5,6,7,8,9,10}
{7}⊈{1,2,3,4,5,6,7,8,9,10}
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The set P = {x | x ∈ Z , –1< x < 1} is a
Singleton set
Power set
Null set
Subset
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If U ={x | x ∈ N , x < 10} and A = {x | x ∈ N , 2 ≤ x < 6} then (A′)′ is
{1, 6, 7, 8, 9}
{1, 2, 3, 4}
{2, 3, 4, 5}
{ }
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If B⊆ A then n(A∩B) is
n(A–B)
n(B)
n(B – A)
n(A)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If A = {x, y, z} then the number of non- empty subsets of A is
8
5
6
7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is correct?
∅ ⊆ {a, b}
∅ ∈ {a, b}
{a} ∈ {a, b}
a ⊆ {a, b}
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If A∪B = A∩B, then
A≠B
A = B
A ⊂ B
B ⊂ A
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