Use the definition of Ax to write the matrix equation as a vector equation, or v

ka1leE

ka1leE

Answered question

2021-09-20

Use the definition of Ax to write the matrix equation as a vector equation, or vice versa.
[73219632][25]=[19124]

Answer & Explanation

hesgidiauE

hesgidiauE

Skilled2021-09-21Added 106 answers

From the Theorem 3 the matrix equation is
Ax=b
where A in m×n matrix bRm.
We have
x1[4174]+x2[5351]+x3[7802]=[6807]
then the matrix equation of the given vector equation is
[x14x1x17x1]+[5x23x25x2x2]+[7x38x302x3]=[6807]
[457138750412][x1x2x3]=[6807]
Hence, the matrix equation is
[457138750412][x1x2x3]=[6807]
Result: [457138750412][x1x2x3]=[6807]

nick1337

nick1337

Expert2023-05-27Added 777 answers

We have the matrix equation:
[73219632][25]=[19124]
To write this matrix equation as a vector equation, we can use the definition of matrix multiplication. Let's denote the matrix on the left-hand side as A and the vector on the right-hand side as x. We can rewrite the equation as:
Ax=[19124]
Conversely, if we start with the vector equation Ax=[19124], we can write it as a matrix equation by representing the vector x as a column matrix:
[73219632][25]=[19124]
Therefore, the matrix equation and the vector equation are equivalent.
Don Sumner

Don Sumner

Skilled2023-05-27Added 184 answers

The equation in matrix form is:
A𝐯=𝐮
Substituting the given values, we have:
[73219632][25]=[19124]
To express the equation as a vector equation, we can expand the matrix multiplication:
[7(2)+(3)(5)2(2)+1(5)9(2)+(6)(5)3(2)+2(5)]=[19124]
Simplifying further, we get:
[14+154518+30610]=[19124]
This yields:
[299124]=[19124]
Therefore, the equation in vector form is:
𝐯=𝐮
Hence, the solution is 𝐯=𝐮, where 𝐯=[25] and 𝐮=[19124].
RizerMix

RizerMix

Expert2023-05-27Added 656 answers

Answer:
[73219632][25]=[19124]
Explanation:
Given the matrix equation:
[73219632][25]=[19124]
We can rewrite this equation in vector form by multiplying the matrix by the vector on the left-hand side. Let's denote the matrix as A and the vector as x. Then, the vector equation becomes:
Ax=[19124]
Now, we can substitute the values of A and x back into the equation:
[73219632][25]=[19124]
Therefore, the vector equation is:
[73219632][25]=[19124]

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