Question

finf K if the follow matrices are singular


| 4 3 1 |
| 7 k 1 |
| 10 9 1 |​

Answer 1

Answer:

the value of k is 6 hope this anwer is right

Answer 2

The value of k is 6 if the matrix is singular.

• Singular matrices are the matrices with determinant as 0.
• $\left\begin{vmatrix}4&3&1\\7&k&1\\10&9&1\end{vmatrix}\right = 0$

4[k-9] -3[7-10] + 1[63-10k] = 0

4k - 36 + 9 + 63 - 10k = 0

-6k + 36 = 0

6k = 36

k = 6

• Therefore, the value of k is 6.