1,332 prompts matching "Solving an equation where the surd must be isolated first"
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Spot My Mistake: Orders that make a product possible one way round but not the other
Act as my SS3 Further Mathematics tutor. Work a question on orders that make a product pos
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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Worked Example: A singular matrix, and why it has no inverse
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WAEC Prep: The order of a matrix formed from a table of data
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WAEC Prep: Reading the order of a matrix as rows by columns
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Learn: Deciding whether a stated matrix calculation is possible at all
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WAEC Prep: A matrix expression with brackets to expand
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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WAEC Prep: Expanding a 3 by 3 determinant down a column
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Quiz: Expanding a 3 by 3 determinant along a row or column containing noughts
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WAEC Prep: When Cramer's rule is quicker than elimination
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WAEC Prep: What Cramer's rule gives when the system is inconsistent
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WAEC Prep: The cofactor of a corner entry
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WAEC Prep: Why the cofactor signs alternate
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WAEC Prep: The adjoint of the identity matrix
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Spot My Mistake: Finding the adjoint of a 3 by 3 matrix
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Learn: The order of the steps in inverting a 3 by 3 matrix
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WAEC Prep: When the matrix method is worth the work for three unknowns
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WAEC Prep: Mass, and how it differs from weight
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