1:Find the determinant of the following mattrix [((2,-1,-6)),((-3,0,5)),((4,3,0))] 2: If told that matrix A is singular Matrix find the possible value(s) for x A = { (16x, 4x),(x,9):}

preprekomW 2021-02-06 Answered

1:Find the determinant of the following mattrix [216305430]

2: If told that matrix A is singular Matrix find the possible value(s) for x A={16x4xx9

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Answered 2021-02-07 Author has 108 answers

Given:
A=[216305430]
As discussed above determinant of A=2(035)(1)[3045]+(6)[3340]
=2(15)+1(020)6(90)
=3020+54=4
Hence, he determinant of the given matrix=4
c.A=[16x4xx9]
We know when the matrix is single determinant is zero
Calculating the determinant of A
|A|=169x4x
=1444x2
Now, put |A|=0
i.e,
1444x2=0
4x2=144
x2=1444=36
x2=36x=(36)
x=6
Hence, x=6 or x=6
(6,=6)

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