NDA (National Defence Academy) Mathematics: Questions 137 - 143 of 384

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Question number: 137

» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,

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Appeared in Year: 2012

MCQ▾

Question

What is equal to?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 138

» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,

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Appeared in Year: 2016

MCQ▾

Question

What is equal to?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 139

» Algebra » Relation

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MCQ▾

Question

Let be a relation from

What is equal to?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 140

» Algebra » Arithmetic Progression

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MCQ▾

Question

The geometric mean and harmonic mean of two non-negative observations are and respectively. Then what is the arithmetic mean of the observation equal to:

Choices

Choice (4) Response

a.

32.5

b.

29

c.

37.5

d.

37

Question number: 141

» Analytical Geometry of Two and Three Dimensions » Equation of a Sphere

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MCQ▾

Question

What is the diameter of the sphere

Choices

Choice (4) Response

a.

27 units

b.

22 units

c.

12 units

d.

25 units

Question number: 142

» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,

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Appeared in Year: 2016

MCQ▾

Question

Let

Then, What is the value of

Choices

Choice (4) Response

a.

62

b.

63

c.

65

d.

68

Passage

The equation formed by multiplying each root of by is .

Question number: 143 (1 of 2 Based on Passage) Show Passage

» Algebra » Quadratic Equations with Real Coefficients

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Appeared in Year: 2012

MCQ▾

Question

Which one of the following is correct?

Choices

Choice (4) Response

a.

b.

c.

d.