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NDA Exam Mathematics Study Material

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Sets and their Representations

A set does not change if one or more elements of the set are ______

a) Repeated
b) Non repeated
c) Equal
d) None of this

✔Answer

Correct Answer Is : Repeated

Solution Is :

If Q = {a,b,c,d}, then the number of subsets in its power set will be

a) 16
b) 4
c) 64
d) 2

✔Answer

Correct Answer Is : 16

Solution Is :

A-(B∩C)=

a) (A-B)∩(A-C)
b) (B-A)∪(A-C)
c) (A-B)∪(A-C)
d) None of this

✔Answer

Correct Answer Is : (A-B)∪(A-C)

Solution Is :

from the following venn diagram, A∩B∩C is

a) {e}
b) {a,b,c,d}
c) {a,b,c,d,e}
d) {a,b,c,f}

✔Answer

Correct Answer Is : {e}

Solution Is :

from the following venn diagram A∩B is

a) {4,3}
b) {4,3,1}
c) {4,1}
d) {2,3}

✔Answer

Correct Answer Is : {4,3}

Solution Is :

A ∪ B = B ∪ A is the

a) Commutative law
b) Idempotent law
c) . Associative law
d) Law of identity

✔Answer

Correct Answer Is : Commutative law

Solution Is :

If A={b,d,f,h,j},B={c,d,h,i},So A-B=

a) {b,f,j}
b) {b,a,f,j}
c) {b,f,I,l,j}
d) {b,f,j,i}

✔Answer

Correct Answer Is : {b,f,j}

Solution Is :

Which of the following is a set ?

a) The collection of all models
b) A collection of 10 best places in India.
c) The collection of all smart students in school.
d) The collection of all the months of a year.

NDA Exam Mathematics Study Material

Sets and their Representations

A set does not change if one or more elements of the set are ______

Correct Answer Is : Repeated

Solution Is :

If Q = {a,b,c,d}, then the number of subsets in its power set will be

Correct Answer Is : 16

Solution Is :

A-(B∩C)=

Correct Answer Is : (A-B)∪(A-C)

Solution Is :

from the following venn diagram, A∩B∩C is

Correct Answer Is : {e}

Solution Is :

from the following venn diagram A∩B is

Correct Answer Is : {4,3}

Solution Is :

A ∪ B = B ∪ A is the

Correct Answer Is : Commutative law

Solution Is :

If A={b,d,f,h,j},B={c,d,h,i},So A-B=

Correct Answer Is : {b,f,j}

Solution Is :

Which of the following is a set ?

Correct Answer Is : The collection of all the months of a year.

Solution Is :

P is a set with 3 elements. So, the number of subsets is:

Correct Answer Is : 8

Solution Is :

U ∪ A = U

Correct Answer Is : Law of U

Solution Is :

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