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in Mathematics by (74.9k points)
prove that `[ [a-b-c , 2a , 2a ] , [2b , b-c-a , 2b ] ,[2c ,2c,c-a-b]]`= `(a+b+c)^3`
A. `-(a+b+c)`
B. `2(a+b+c)`
C. abc
D. `-2(a+b+c)`

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1 Answer

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by (74.1k points)
Correct Answer - D

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