# NDA (National Defense Academy) Mathematics: Questions 85 - 92 of 384

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## Question number: 85

» Algebra » Complex Numbers » Basic Properties

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Appeared in Year: 2016

MCQ▾

### Question

If is a complex number, then which one of the following is correct?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 86

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MCQ▾

### Question

Out of first year students, passes in first semester and passed in the second semester. If did not pass in either semester, how many passed in both semesters?

### Choices

Choice (4)Response

a.

200

b.

100

c.

120

d.

110

## Question number: 87

» Algebra » Complex Numbers » Modulus

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Appeared in Year: 1960

MCQ▾

### Question

If Where, , then what is the value of ?

### Choices

Choice (4)Response

a.

b.

0

c.

1

d.

## Question number: 88

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MCQ▾

### Question

The sixth term of an is and it’s common difference is greater than What is the common difference of the , so that the product of the second, fifth and six terms is greatest?

### Choices

Choice (4)Response

a.

0

b.

c.

d.

## Question number: 89

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MCQ▾

### Question

What is perimeter of the triangle with vertices and ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 90

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Appeared in Year: 2012

MCQ▾

### Question

Which one of the following differential equation is not linear?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 91

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MCQ▾

### Question

What is equal to?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 92

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MCQ▾

### Question

If one of the roots of the equation is , then what is equal to:

### Choices

Choice (4)Response

a.

b.

c.

d.

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