# BITSAT Mathematics: Questions 46 - 52 of 378

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## Question number: 46

MCQ▾

### Question

The system of equation of equations in unknowns has a unique solution if

### Choices

Choice (4) Response

a.

Det A ≠ 0, AdjAB = 0

b.

Det A = 0, AdjAB = 0

c.

Det A = 0, AdjAB ≠ 0

d.

Det A ≠ 0

## Question number: 47

MCQ▾

### Question

If , then is equal to,

### Choices

Choice (4) Response

a.

b.

c.

- 1

d.

1

## Question number: 48

MCQ▾

### Question

If , then value of is –

### Choices

Choice (4) Response

a.

7

b.

4

c.

5

d.

6

## Question number: 49

MCQ▾

### Choices

Choice (4) Response

a.

0

b.

c.

2

d.

## Question number: 50

» Basic Mathematics » Algebra » Simplifying Expressions

MCQ▾

### Question

If , are the roots of the equation , lies between and , if –

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 51

MCQ▾

### Question

If lies on , then lies on –

### Choices

Choice (4) Response

a.

Parabola

b.

Ellipse

c.

Line

d.

Circle

## Question number: 52

MCQ▾

### Question

has its extreme value of . Then –

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

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