# Matrices and Determinants (BITSAT Mathematics): Questions 1 - 7 of 24

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## Question number: 1

» Matrices and Determinants » Types of Matrices

MCQ▾

### Question

If is symmetric and then is –

### Choices

Choice (4) Response

a.

Skew – symmetric

b.

Symmetric

c.

Diagonal

d.

Both b. and c. are correct

## Question number: 2

» Matrices and Determinants » Types of Matrices

MCQ▾

### Question

A square matrix is called a diagonal matrix if for,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 3

» Matrices and Determinants » Types of Matrices

MCQ▾

### Question

If inverse of a diagonal matrix is –

### Choices

Choice (4) Response

a.

Diagonal

b.

Symmetric

c.

Skew – symmetric

d.

None of the above

## Question number: 4

» Matrices and Determinants » Determinants and Matrices of Order Two and Three

MCQ▾

### Question

The roots of equation are –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 5

» Matrices and Determinants » Algebra of Matrices

MCQ▾

### Question

If for a matrix where is the identity matrix, then A equals

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 6

» Matrices and Determinants » Solution of Simultaneous Linear Equations in Two or Three Variables

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: 7

» Matrices and Determinants » Adjoint and Evaluation of Inverse of Square Matrix

MCQ▾

### Question

The inverse of a symmetric matrix is –

### Choices

Choice (4) Response

a.

Skew – symmetric

b.

Symmetric

c.

Diagonal matrix

d.

Question does not provide sufficient data or is vague

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