NCERT Solutions for Class 11 Maths Chapter 11 Exercise 11.1

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CBSE CLASS XII Related Questions

1.
Find the inverse of each of the matrices, if it exists. \(\begin{bmatrix} 1 &  3\\ 2 & 7\end{bmatrix}\)

      2.
      For what values of x,\(\begin{bmatrix} 1 & 2 & 1 \end{bmatrix}\)\(\begin{bmatrix} 1 & 2 & 0\\ 2 & 0 & 1 \\1&0&2 \end{bmatrix}\)\(\begin{bmatrix} 0 \\2\\x\end{bmatrix}\)=O?

          3.
          Find the inverse of each of the matrices,if it exists \(\begin{bmatrix} 2 & 1 \\ 7 & 4  \end{bmatrix}\)

              4.

              If A=\(\begin{bmatrix}2&-1&1\\-1&2&-1\\1&-1&2\end{bmatrix}\)verify that A3-6A2+9A-4 I=0 and hence find A-1 

                  5.
                  Find the inverse of each of the matrices,if it exists. \(\begin{bmatrix} 2 &  3\\ 5 & 7 \end{bmatrix}\)

                      6.
                      Let f: R→R be defined as f(x) = 3x. Choose the correct answer.

                        • f is one-one onto
                        • f is many-one onto
                        • f is one-one but not onto
                        • f is neither one-one nor onto
                        CBSE CLASS XII Previous Year Papers

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