Question 5 - Week 1 Practice | Prasnya
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Week 1
Question 5
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Est. 3 min
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Find the minimum value of
β
\beta
such that the matrix
[
β
−
1
0
−
1
2
β
+
4
2
β
+
1
β
+
1
β
+
1
]
\begin{bmatrix}\beta-1&0&-1\\2&\beta+4&2\\\beta+1&\beta+1&\beta+1\end{bmatrix}
is not invertible.
Integer answer
Medium Difficulty
26 October 2025
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