Question

A=
1 2 3 0
2 4 3 2
3 2 1 3
6 8 7 a and rank is 3, then a =​

Answer 1

Answer:

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Step-by-step explanation:

If [ ] 1 2

2 3 = O

–3 0 8

x

x

   

        , find the value of x.

Solution We have

[ ] 1 2

2 3 = O

–3 0 8

x

x

   

        ⇒ [2 9 4 = 0 ] [ ] 8

x

x x

  −    

or [ ] 2 2 9 32 = 0 x x x − + 

 

⇒ 2 2 23 0 x x + =

or x x (2 23) 0 + = ⇒ x = 0, x =

23

2

Answer 2

Answer:

a will be 2.......................