NDA (National Defence Academy) Mathematics: Questions 277 - 281 of 384

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Question number: 277

» Algebra » Complex Numbers » Argument

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Appeared in Year: 2012

MCQ▾

Question

If then which one the following is correct?

Choices

Choice (4) Response

a.

The real part of is zero.

b.

The sum of real and imaginary parts of is

c.

The real part of is equal to imaginary part of

d.

The Imaginary part of is zero.

Question number: 278

» Trigonometry » Trigonometric Identities Sum and Difference Formulae

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Appeared in Year: 2012

MCQ▾

Question

Which one of the following is positive in the third quadrant?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 279

» Algebra » Logarithms and Their Applications

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Appeared in Year: 2016

MCQ▾

Question

If for any then which one of the following is correct?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 280

» Algebra » Arithmetic Progression

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MCQ▾

Question

What is the arithmetic mean of first natural number with weights being the number itself?

Choices

Choice (4) Response

a.

9

b.

5

c.

7

d.

3

Question number: 281

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

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MCQ▾

Question

If , the which of the following are correct?

The value of the determinats of the matrix

The determinant of is an even function

Select the correct answer using the code given below:

Choices

Choice (4) Response

a.

b.

2 and 3 only

c.

1 and 3 only

d.

1,2 and 3