Question

If the matrix [[2, 4, 6] [2, x, 2] [6, 8, 14]] is singular then find x.​

Answer 1

When a matrix is singular, it's determinant is equal to zero.

$= >d = 2(14x - 16) - 4(28 - 12) + 6(16 - 6x) = 0$

$= > d = 28x - 32 - 112 + 48 + 96 - 36x = 0$

$= > d = - 8x - 144 + 144 = 0$

$= > d = - 8x = 0$

$= > x = 0$

Hence, value of x is 0.

Hope this answer helps you ^ _ ^ !

Answer 2

Answer:

Step-by-step explanation:

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