Question

# The root of the equation [x 1 2] = 0 is-

- 1/3
- – 1/3
- 0
- 1

## The correct answer is: 1/3

### To find the root of the equation.

Given, [x 1 2] = 0.

x = 0

3x-1 = 0

x =

Therefore, root of the equation is .

### Related Questions to study

### If A = and A^{2} + kI = 8A, then k equals

### If A = and A^{2} + kI = 8A, then k equals

### If A and B are matrices of order m × n and n × n respectively, then which of the following are defined-

### If A and B are matrices of order m × n and n × n respectively, then which of the following are defined-

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

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

### A matrix A = (aij) m x n is said to be a square matrix if-

### A matrix A = (aij) m x n is said to be a square matrix if-

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

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

### 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.