Class 9th 1.Sets Math 1

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Std 9th sub.Math 1

Students Name *

Which of the following collection is a set? *

2 points

Good boys in your class.

Difficult examples in your text book.

Prime numbers between 1 and 1000

Intelligent people in your society

Other:

X={x|x is an even number,1 < x <8}. Write this set in roster method. *

2 points

{ 0,2,4,6}

{ 2,4,6 }

{ 2,4,6,8 }

{0,2,4,6,8 }

Which of the following is a singleton set? *

2 points

P = {x|x ²= 49, x € I }

Q = { y|y² + 5= 2y²+4, y € I }

R = { m|m € I, m³ =27 }

S = { n|n² - 25 = 0 }

Which of the following is an empty set? *

2 points

A point of intersection of two parallel lines

A set of odd prime numbers

Q= { x|x€w, -1< x < 2 }

A month in an English calendar not having 30 or 31 days

If U = {1, 3, 5, 7, 9, 11} and P = { 1, 5, 9 } , then P' = .... *

2 points

{ 1,3,7,11 }

{ 3,7,9 }

{ 1,7,11 }

{ 3,7,11}

A ᴗ A'= ... *

2 points

∅

ᴗ

If n(A) =11, n(B) = 7, n(A ᴗ B)=13, then A ∩ B =? *

2 points

State which of the following sets are equal. *

2 points

N = {1,2,3,4.....}

W= {0,1,2,3.....}

A= { x|x = 2ⁿ, n € W }

B= set of whole numbers except 0

Required

Which of the following collections are sets? *

2 points

The collection of prime numbers

The collection of easy sub topics in this chapter

The collection of good teachers in your school

The collection of girls in your class

The collection of odd natural numbers

Required

If n(A) = 5, n(A ᴗ B) = 9, n(A ∩ B) = 2, find n(B). *

2 points

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