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NDA 2014
Exam
NDA
Year
2014
Subject
Mathematics
Chapter
Matrices

NDA 2014 · Mathematics · Matrices

If the matrix A is such that ( array ll 1 & 3 0 & 1 array ) A=(...

If the matrix AA is such that \left(1301\begin{array}{ll}1 & 3 \\ 0 & 1\end{array}\right) A=\left(110−1\begin{array}{cc}1 & 1 \\ 0 & -1\end{array}\right)$, then what is A equal to?

Options

  1. A\left(140−1\begin{array}{cc}1 & 4 \\ 0 & -1\end{array}\right)
  2. B\left(1401\begin{array}{ll}1 & 4 \\ 0 & 1\end{array}\right)
  3. C\left(−140−1\begin{array}{cc}-1 & 4 \\ 0 & -1\end{array}\right)
  4. D\left(1−40−1\begin{array}{ll}1 & -4 \\ 0 & -1\end{array}\right)

Correct answer

A. \left(140−1\begin{array}{cc}1 & 4 \\ 0 & -1\end{array}\right)

Step-by-step solution

The correct answer is option (A)
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