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NDA 2014
Exam
NDA
Year
2014
Subject
Mathematics
Chapter
Matrices

NDA 2014 · Mathematics · Matrices

Consider two matrices A=[ array ll 1 & 2 2 & 1 1 & 1 array ] and...

Consider two matrices \mathrm{A}=\left[122111\begin{array}{ll}1 & 2 \\ 2 & 1 \\ 1 & 1\end{array}\right] and\mathrm{B}=\left[12−421−4\begin{array}{lll}1 & 2 & -4 \\ 2 & 1 & -4\end{array}\right]$. Which one of the following is correct?

Options

  1. ABB is the right inverse of AA
  2. BBB is the left inverse of AA
  3. CBB is the both sided inverse of AA
  4. DNone of the above

Correct answer

D. None of the above

Step-by-step solution

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