# NDA (National Defense Academy) Mathematics: Questions 306 - 313 of 384

Access detailed explanations (illustrated with images and videos) to 384 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 250.00 or

How to register?

## Question number: 306

Edit

Appeared in Year: 2012

MCQ▾

### Question

If a matrix has inverse and then which one of the following is correct?

### Choices

Choice (4)Response

a.

May not be equal to

b.

Should be equal to

c.

And should be unit matrices

d.

None of the above

## Question number: 307

Edit
MCQ▾

### Question

Let,

Then, What is the value of

### Choices

Choice (4)Response

a.

0

b.

33

c.

35

d.

13

## Question number: 308

Edit
MCQ▾

### Question

If then what is equal to?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 309

Edit

Appeared in Year: 2012

MCQ▾

### Question

If the sequence is a geometric progression and then what is the value of ?

### Choices

Choice (4)Response

a.

Cannot be determined

b.

5

c.

3

d.

1

## Question number: 310

Edit
MCQ▾

### Question

The actuate angle which the perpendicular from origin on the line makes with the is

### Choices

Choice (4)Response

a.

Negative

b.

Possitive

c.

d.

All of the above

## Question number: 311

Edit

Appeared in Year: 2012

MCQ▾

### Question

If , then what is the unit vector parallel to in the opposite direction?

### Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 312

Edit

Appeared in Year: 2012

MCQ▾

### Question

What is the value of ?

### Choices

Choice (4)Response

a.

22/65

b.

c.

11/65

d.

33/65

## Question number: 313

Edit

Appeared in Year: 2016

MCQ▾

### Question

Let,

Then, What is the value of

### Choices

Choice (4)Response

a.

b.

35

c.

50

d.

34

Developed by: