NEST (National Entrance Screening Test) Mathematics: Questions 20 - 26 of 50

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Question number: 20

» Complex Numbers and Quadratic Equations » Algebra of Complex Numbers

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Appeared in Year: 2017

MCQ▾

Question

Let be the set of all complex numbers, let Then

Choices

Choice (4) Response

a.

b.

is proper subset of

c.

is the empty set

d.

is proper subset of

Question number: 21

» Sets, Relations and Functions » Union, Intersection and Complement of Sets

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MCQ▾

Question

Let to two universal set and is equal to

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 22

» Limits & Continuity » Limits

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MCQ▾

Question

is equal to

Choices

Choice (4) Response

a.

Does not exist

b.

c.

0

d.

None of the above

Question number: 23

» Matrices and Determinants » Adjoint and Evaluation of Inverse of Square Matrix

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Appeared in Year: 2016

MCQ▾

Question

Let be a matrix with real entries. Let is the transpose of be the identity matrix of order then

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 24

» Limits & Continuity » Rational Functions

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MCQ▾

Question

Let if the function be continuous at then, as equal to

Choices

Choice (4) Response

a.

2

b.

0

c.

d.

1

Question number: 25

» Complex Numbers and Quadratic Equations » Algebra of Complex Numbers

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MCQ▾

Question

If are the cube root of unity, then is equal to

Choices

Choice (4) Response

a.

0

b.

c.

1

d.

Question number: 26

» Limits & Continuity » Real Valued Functions

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MCQ▾

Question

The value of is

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above