1,190 prompts matching "IGCSE Additional Maths Y11: When cot x is nought, and when it is undefined — Exa"
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WAEC Prep: Raising a 2 by 2 matrix to the third power
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through raising a 2 by 2 m
Spot My Mistake: Squaring a 2 by 2 matrix
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Explain Back: Keeping track of the nine entries when multiplying 3 by 3 matrices
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Spot My Mistake: Multiplying a 3 by 3 matrix by a 3 by 1 column
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Learn: The distributive law for a scalar over a sum of matrices
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Spot My Mistake: Orders that make a product possible one way round but not the other
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Spot My Mistake: A symmetric matrix, equal to its own transpose
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Practice: The condition on the orders for a product to exist
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Explain Back: The order of the answer when two matrices are multiplied
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Learn: Deciding whether a stated matrix calculation is possible at all
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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Spot My Mistake: Forming the determinant Dx by replacing the first column
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Explain Back: What a coefficient determinant of nought says about the system
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Spot My Mistake: Checking a Cramer's rule solution by substituting back
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Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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Spot My Mistake: Finding the adjoint of a 3 by 3 matrix
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Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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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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WAEC Prep: The newton, and how it is defined
Act as my WAEC Further Mathematics coach. I am in SS 3. Set me an exam-standard question o