351 prompts matching "A probability found by counting arrangements"
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WAEC Prep: Multiplying two 3 by 3 matrices, row into column
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Explain Back: Keeping track of the nine entries when multiplying 3 by 3 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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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: The difference between pre-multiplying and post-multiplying by a matrix
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Quiz: Solving AX equals B and XA equals B by different routes
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WAEC Prep: Writing the transpose of a matrix by turning rows into columns
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Practice: The transpose of a 2 by 3 matrix
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WAEC Prep: Reading the order of a matrix as rows by columns
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WAEC Prep: The determinant of a 2 by 2 matrix as ad minus bc
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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WAEC Prep: The determinant of a 3 by 3 matrix with two equal rows
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WAEC Prep: Expanding a 3 by 3 determinant down a column
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WAEC Prep: Expanding a 3 by 3 determinant along the first row
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Quiz: Expanding a 3 by 3 determinant along a row or column containing noughts
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Practice: The sign pattern of the cofactors in a 3 by 3 determinant
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Worked Example: Evaluating a 3 by 3 determinant by the rule of Sarrus
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