Consider two matrices A=[\table1,2;2,1;1,1] and B=[\table1,2,-4;2,1,-4] Which one of the following is correct? [NDA I 2014]

Correct Answer is : B is left inverse of A

B is the both sided inverse of A

UPSC NDA I 2014 Mathematics Paper

Question : 26 of 120

Marks: +1, -0

Consider two matrices A=[

] and B=[

1	2	−4
2	1	−4

] Which one of the following is correct?

[NDA I 2014]

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