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Sagot :
Let's solve the problem of finding the missing value in the given matrix:
[tex]\[ \begin{array}{cccc} 6 & -5 & -6 & 5 \\ -4 & 3 & 2 & -6 \\ 6 & 6 & 9 & 4 \\ -9 & ? & 6 & 3 \end{array} \][/tex]
We want to determine the missing value in the lower-right matrix that would make the sums of each row equal. To do this, we'll assume that the sum of each row should be the same.
### Step-by-Step Solution:
1. Calculate the sum of the first row:
[tex]\[ 6 + (-5) + (-6) + 5 = 6 - 5 - 6 + 5 = 0 \][/tex]
2. Calculate the sum of the second row:
[tex]\[ -4 + 3 + 2 - 6 = -4 + 3 + 2 - 6 = -5 \][/tex]
3. Calculate the sum of the third row:
[tex]\[ 6 + 6 + 9 + 4 = 6 + 6 + 9 + 4 = 25 \][/tex]
Notice that the sums of the first three rows are different. This suggests that the sums might not be intended to be equal. Therefore, a different property of the matrix or more context might be missing.
Given the inconsistency in row sums, let's examine the possibility of pattern or constraint that involves the missing value fitting naturally. One feasible assumption is that there exists a continuation of balance or other hint (like column-based sum consistency). Nevertheless:
4. Calculate the sum of known elements in the fourth row:
[tex]\[ -9 + 6 + 3 = 0 \][/tex]
Now, equating it to a logical sum based on average or inference:
5. Assume the same balancing sum of `0` as the first row due natural balance (a valid trial):
Missing value [tex]\( ? \equiv bernsum_{sum-0-rough}\)[/tex]
If the balancing sum is adjusted or assumed null:
6. This leads directly:
So, [tex]\( ? = 0 - (-9 + 6 + 3) \)[/tex].
Solving it:
[tex]\[ ? = 0 - 0 = 0 \][/tex]
Thus [tex]\( ? = 0 \)[/tex] if and only matching basic computational sanity, then debugging further.
Thus the missing value [tex]\( ? \)[/tex] should be [tex]\(\boxed{0}\)[/tex], given assumptions correct. Verification if pattern accepted otherwise deeper conditions constantly examined.
[tex]\[ \begin{array}{cccc} 6 & -5 & -6 & 5 \\ -4 & 3 & 2 & -6 \\ 6 & 6 & 9 & 4 \\ -9 & ? & 6 & 3 \end{array} \][/tex]
We want to determine the missing value in the lower-right matrix that would make the sums of each row equal. To do this, we'll assume that the sum of each row should be the same.
### Step-by-Step Solution:
1. Calculate the sum of the first row:
[tex]\[ 6 + (-5) + (-6) + 5 = 6 - 5 - 6 + 5 = 0 \][/tex]
2. Calculate the sum of the second row:
[tex]\[ -4 + 3 + 2 - 6 = -4 + 3 + 2 - 6 = -5 \][/tex]
3. Calculate the sum of the third row:
[tex]\[ 6 + 6 + 9 + 4 = 6 + 6 + 9 + 4 = 25 \][/tex]
Notice that the sums of the first three rows are different. This suggests that the sums might not be intended to be equal. Therefore, a different property of the matrix or more context might be missing.
Given the inconsistency in row sums, let's examine the possibility of pattern or constraint that involves the missing value fitting naturally. One feasible assumption is that there exists a continuation of balance or other hint (like column-based sum consistency). Nevertheless:
4. Calculate the sum of known elements in the fourth row:
[tex]\[ -9 + 6 + 3 = 0 \][/tex]
Now, equating it to a logical sum based on average or inference:
5. Assume the same balancing sum of `0` as the first row due natural balance (a valid trial):
Missing value [tex]\( ? \equiv bernsum_{sum-0-rough}\)[/tex]
If the balancing sum is adjusted or assumed null:
6. This leads directly:
So, [tex]\( ? = 0 - (-9 + 6 + 3) \)[/tex].
Solving it:
[tex]\[ ? = 0 - 0 = 0 \][/tex]
Thus [tex]\( ? = 0 \)[/tex] if and only matching basic computational sanity, then debugging further.
Thus the missing value [tex]\( ? \)[/tex] should be [tex]\(\boxed{0}\)[/tex], given assumptions correct. Verification if pattern accepted otherwise deeper conditions constantly examined.
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