1,116 prompts matching "Expanding a bracket with a minus sign inside it"
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Quiz: The zero matrix as the identity for matrix addition
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WAEC Prep: Subtracting a matrix from itself
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WAEC Prep: Multiplying a 3 by 3 matrix by the identity matrix
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WAEC Prep: Writing the transpose of a matrix by turning rows into columns
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Spot My Mistake: A symmetric matrix, equal to its own transpose
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WAEC Prep: The identity matrix of order three
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WAEC Prep: The identity matrix, and what it does in a product
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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: The determinant of the identity matrix
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Spot My Mistake: Checking a Cramer's rule solution by substituting back
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WAEC Prep: The adjoint of the identity matrix
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Quiz: Checking an inverse by multiplying to get the identity
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: Writing two simultaneous equations as a single matrix equation
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WAEC Prep: Writing three simultaneous equations as a single matrix equation
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WAEC Prep: Mass, and how it differs from weight
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WAEC Prep: The newton, and how it is defined
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WAEC Prep: Two forces acting in opposite directions
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through two forces acting