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If A=[(5a,-b),(3,2)] and AadjA=A A^(T), ...

If `A=[(5a,-b),(3,2)]` and `AadjA=A A^(T)`, then `5a+b` is equal to

A

5

B

4

C

13

D

`-1`

Text Solution

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The correct Answer is:
A
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