1,319 prompts matching "The inverse of the identity element itself"
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WAEC Prep: Multiplying two 2 by 2 matrices, row into column
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Explain Back: Showing that AB and BA are usually different for 2 by 2 matrices
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Spot My Mistake: Squaring a 2 by 2 matrix
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Practice: A 2 by 2 matrix multiplied by a column vector
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WAEC Prep: Multiplying two 3 by 3 matrices, row into column
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Spot My Mistake: Multiplying a 3 by 3 matrix by a 3 by 1 column
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WAEC Prep: Multiplying a matrix by a fraction
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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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Quiz: Solving AX equals B and XA equals B by different routes
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Spot My Mistake: A symmetric matrix, equal to its own transpose
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WAEC Prep: A skew-symmetric matrix
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Practice: A diagonal matrix
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WAEC Prep: Evaluating A squared minus 2A
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WAEC Prep: A matrix expression with brackets to expand
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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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Explain Back: Solving a matrix equation containing both a sum and a product
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Quiz: Finding an unknown entry from a stated matrix equation
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