Question

for what value of x , the square matrix of [ 5-x x+1
2 4] is a singular matrix​

Answer 1

Step-by-step explanation:

if determinant of a matrix is zero the it is called a singular matrix.

[{(5-x) × 4} - {(x+1) × 2}] = 0

(20 - 4x) - (2x + 2) = 0

20 - 4x - 2x - 2 = 0

18 - 6x = 0

6x = 18

x = 3 ans