1,303 prompts matching "Why brackets matter when an operation is not associative"
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WAEC Prep: Adding two 2 by 2 matrices entry by entry
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Quiz: The zero matrix as the identity for matrix addition
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WAEC Prep: Checking a matrix subtraction by adding back
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WAEC Prep: Subtracting a matrix from itself
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Quiz: Solving a matrix equation of the form A plus X equals B
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WAEC Prep: The product of a 2 by 2 matrix with the identity
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WAEC Prep: Multiplying two 2 by 2 matrices, row into column
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WAEC Prep: Multiplying a 3 by 3 matrix by the identity matrix
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WAEC Prep: Checking a single entry of a 3 by 3 product
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WAEC Prep: Multiplying two 3 by 3 matrices, row into column
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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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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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WAEC Prep: A skew-symmetric matrix
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WAEC Prep: The identity matrix of order three
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WAEC Prep: The order of a matrix formed from a table of data
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WAEC Prep: Stating the order of a product before working it out
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WAEC Prep: Reading the order of a matrix as rows by columns
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