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If |(a+b+2c,a,b),(c,b+c+2a,b),(c,a,c+a+2...

If `|(a+b+2c,a,b),(c,b+c+2a,b),(c,a,c+a+2b)|=k(a+b+c)^(3)`, then k =

A

2

B

`-1`

C

`-2`

D

1

Text Solution

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The correct Answer is:
A
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