Let A=\left|\begin{array}{ccc}5 & 5 \alpha & \alpha \ 0 & \alpha & 5 \alpha \ 0 & 0 & 5|\end{array}. If |A^2{{}/{}|} =25, then |\alpha| equals [AIEEE 2007]

Matrices and Determinants Part 1

Section: Mathematics

Question : 86 of 100

Marks: +1, -0

Let A=|

|. If |A2

‌

|=25, then |α| equals

[AIEEE 2007]

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