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V125BC [204]
2 years ago
8

Algebra question ( Matrices and Determinants ) 20 points

Mathematics
1 answer:
Iteru [2.4K]2 years ago
7 0
The correct answer is option A

The answer is as following 
The new matrix is 2 rows and 2 columns . i.e. it is 2*2 matrix
The element a₁₁ =5*2 + 0*2 = 10
The element a₁₂ = 5*-1 + 0*-2 = -5
The element a₂₁ = 3*2 +-5*2 = -4
The element a₂₂ = 3*-1 + -5*-2 = 7

The new matrix will be \left[\begin{array}{ccc}10&-5\\-4&7\end{array}\right]

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Hello from MrBillDoesMath!

Answer:

One solution (z = -1)

Discussion:

-2(z+3)-z=-z-4(z+2)        =>

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