# NDA (National Defence Academy) Mathematics: Questions 20 - 27 of 384

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## Question number: 20

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MCQ▾

### Question

Two poles are and high. The line joining their tips makes an angle of with the horizontal. What is the distance between the poles?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 21

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MCQ▾

What is equal to

### Choices

Choice (4) Response

a.

1/2

b.

- 1

c.

-1/4

d.

0

## Question number: 22

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MCQ▾

### Question

If the mid-point between the points and lies on the line what is k equal to?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 23

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Appeared in Year: 2012

MCQ▾

### Question

and are two matrices such that and then what is equal to?

### Choices

Choice (4) Response

a.

2

b.

3

c.

1

d.

4

## Question number: 24

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MCQ▾

### Question

What is the solution of differential equation

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 25

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MCQ▾

### Question

If and then what is determinant of ?

### Choices

Choice (4) Response

a.

0

b.

1197

c.

1177

d.

1322

## Question number: 26

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Appeared in Year: 2012

MCQ▾

### Question

If are two angle of a triangle, then what is the third angle?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 27

Edit

Appeared in Year: 2012

MCQ▾

### Question

What is the solution of differential equation

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

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