1,334 prompts matching "Logical reasoning with 'and' versus 'or' in sets"
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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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Quiz: The zero matrix, and how it differs from nought in arithmetic
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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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WAEC Prep: Evaluating 2A plus 3B for two given matrices
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WAEC Prep: Setting out the coefficient determinant for two simultaneous equations
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Spot My Mistake: Forming the determinant Dx by replacing the first column
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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WAEC Prep: The minor of an entry of a 3 by 3 matrix
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WAEC Prep: The order in which the cofactors are transposed
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WAEC Prep: The adjoint as the transpose of the matrix of cofactors
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Learn: Swapping and negating the entries when inverting a 2 by 2 matrix
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Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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WAEC Prep: Checking the determinant before attempting a 3 by 3 inverse
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Learn: The order of the steps in inverting a 3 by 3 matrix
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Spot My Mistake: Why the inverse must be applied on the correct side
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WAEC Prep: A three-unknown system arising from a word problem
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Quiz: Solving three simultaneous equations with the inverse matrix
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WAEC Prep: A particle, and what the word assumes
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through a particle, and wh