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Let A=[5 5alphaalpha0alpha5alpha0 0 5]do...

Let `A=[5 5alphaalpha0alpha5alpha0 0 5]dot"I f"|A^2|=25 ,` then `|alpha|` equals (1) `5^2` (2) 1 (3) 1/5 (4) 5

A

`5^(2)`

B

1

C

`(1)/(5)`

D

5

Text Solution

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The correct Answer is:
C
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MOTION-MATRICES -Exercise - 4 (Level-I)
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  5. Let A=[5 5alphaalpha0alpha5alpha0 0 5]dot"I f"|A^2|=25 , then |alpha| ...

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  11. Let A and B be two symmetric matrices of order 3. Statement-1 : A(BA) ...

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  12. Let omega!=1 be cube root of unity and S be the set of all non-singula...

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