1,334 prompts matching "The complement rule used in a counting problem"
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Worked Example: The associative law for the product of three matrices
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WAEC Prep: Multiplying a matrix by a fraction
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WAEC Prep: Multiplying every entry of a matrix by a scalar
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Worked Example: Taking a common factor out of a matrix
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Learn: The distributive law for a scalar over a sum of matrices
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Quiz: Multiplying a matrix by minus one
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WAEC Prep: Pre-multiplying a column vector by a matrix
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WAEC Prep: Post-multiplying a row vector by a matrix
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Spot My Mistake: Orders that make a product possible one way round but not the other
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Quiz: Solving AX equals B and XA equals B by different routes
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WAEC Prep: The transpose of a column vector
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WAEC Prep: The transpose of a transpose
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Practice: The transpose of a 2 by 3 matrix
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WAEC Prep: The identity matrix of order three
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Worked Example: A singular matrix, and why it has no inverse
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WAEC Prep: The order of a matrix formed from a table of data
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Practice: The condition on the orders for a product to exist
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WAEC Prep: Evaluating A squared minus 2A
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WAEC Prep: Evaluating 2A plus 3B for two given matrices
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Practice: Evaluating AB minus BA
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