Question:
There are two values of a for which the determinant, \(\Delta =\begin{bmatrix}1& -2& 5\\[0.3em]0& a& 1\\[0.3em] 0& 4& 2a\\[0.3em] \end{bmatrix} = 86\), then the sum of these values of a is:
There are two values of a for which the determinant, \(\Delta =\begin{bmatrix}1& -2& 5\\[0.3em]0& a& 1\\[0.3em] 0& 4& 2a\\[0.3em] \end{bmatrix} = 86\), then the sum of these values of a is:
Updated On: May 18, 2024
- \(\sqrt{41}\)
- 0
- \(- \sqrt{41}\)
- \(2 \sqrt{41}\)
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The Correct Option is B
Solution and Explanation
The correct option is (B): 0
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