21.2 - Matrices and Types of Matrices
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Practice Questions
Test your understanding with targeted questions
Define what a matrix is.
💡 Hint: Think of how numbers are organized.
What is a row matrix?
💡 Hint: Consider the arrangement of elements.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What defines a singular matrix?
💡 Hint: Recall the definition of singular matrices.
True or False: An identity matrix can have diagonal entries other than 1.
💡 Hint: Think about the functions of an identity matrix.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given the following matrix A = [[2, 0, 0], [0, 3, 0], [0, 0, 0]], determine its type (singular/non-singular) and explain your reasoning.
💡 Hint: Check the determinant!
Create a 2x2 diagonal matrix and a scalar matrix, then prove their differences through multiplication with another matrix.
💡 Hint: Perform the multiplication!
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