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math54-f22:quiz7

Sample Quiz 7 Questions

  • What is $A^{-1}$ if $$A = \begin{bmatrix} 1 & 0 & 1 \cr 0 & 1 & 1 \cr 0 & 0 & 1 \end{bmatrix}$$
  • Write $$B = \begin{bmatrix} 1 & 2 & 3 \cr 4 & 5 & 6 \cr 7 & 8 & 9 \end{bmatrix}$$ in row-echelon form.
  • What are the image and kernel of the matrix $$C = \begin{bmatrix} 1 & 1 & 1 \cr 1 & 2 & 1 \cr 2 & 3 & 2 \end{bmatrix},$$

find a basis for the image and kernel of $C$.

math54-f22/quiz7.txt · Last modified: 2022/10/18 17:52 by gsi_sergio_escobar