Practice Examples - 31.7 | 31. Similarity of Matrices | Mathematics (Civil Engineering -1)
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Practice Questions

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Question 1

Easy

What does it mean for two matrices to be similar?

💡 Hint: Think about the idea of changing coordinate systems.

Question 2

Easy

How do you find eigenvalues from a matrix?

💡 Hint: Remember the characteristic equation involves the determinant!

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What condition must be satisfied for two matrices to be considered similar?

  • They must have the same determinant
  • They must have the same eigenvalues
  • They must be orthogonal

💡 Hint: Recall the criteria for matrix similarity.

Question 2

True or False: A matrix can be similar to a matrix that is not diagonalizable.

  • True
  • False

💡 Hint: Think about the diagonalizability condition for similarity.

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Challenge Problems

Push your limits with challenges.

Question 1

Determine if the matrix D = [[1, -2], [0, 1]] is diagonalizable. Justify your answer with calculations.

💡 Hint: Check the eigenvectors found and see if any are lost due to multiplicity.

Question 2

For matrices F and G, if F is similar to G and G = [[3, 0], [0, 1]], what can you infer about the eigenvalues of F?

💡 Hint: Recall how similar matrices share eigenvalues.

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