Question

# For any square matrix A = [aij], aij = 0, when i j, then A is-

- unit matrix
- scalar matrix
- diagonal matrix
- none of these

## The correct answer is: diagonal matrix

### To define the given condition for a matrix.

a diagonal matrix is a matrix in which the entries outside the main diagonal are all zero ,i.e., aij = 0, when i j.

Therefore, given matrix is diagonal matrix.

### Related Questions to study

### The multiplicative inverse of A =is

### The multiplicative inverse of A =is

### (A) and (B) are:

### (A) and (B) are:

### A = , then A^{3} – 4A^{2} – 6A is equal to -

### A = , then A^{3} – 4A^{2} – 6A is equal to -

### Inverse of the matrix is

### Inverse of the matrix is

### If A = and A^{2} – 4A – n I = 0, then n is equal to

### If A = and A^{2} – 4A – n I = 0, then n is equal to

### The value of x for which the matrix product equal an identity matrix is :

### The value of x for which the matrix product equal an identity matrix is :

### If A = , then A^{–1} is equal to :

### If A = , then A^{–1} is equal to :

### If A is a singular matrix, then adj A is :

### If A is a singular matrix, then adj A is :

Statement - I The value of x for which (sin x + cos x)^{1 + sin 2x} = 2, when 0 ≤ x ≤ , is only.

Statement - II The maximum value of sin x + cos x occurs when x =

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason.

Statement - I The value of x for which (sin x + cos x)^{1 + sin 2x} = 2, when 0 ≤ x ≤ , is only.

Statement - II The maximum value of sin x + cos x occurs when x =

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason.