318 prompts matching "Explain-back: what a matrix inverse actually does"
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Learn: Making one unknown the subject of the linear equation
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Worked Example: Substituting into the quadratic and tidying up
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Learn: Forming the quadratic that decides where a line meets a curve
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Worked Example: The discriminant used as the test for intersection
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Worked Example: The degree of a polynomial in one variable
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Learn: Setting out the division of a cubic by a linear expression
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Worked Example: The division algorithm for polynomials
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Learn: The statement of the remainder theorem
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Worked Example: The remainder on dividing by x minus 3
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Learn: The statement of the factor theorem
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Worked Example: Testing a list of candidates to find a factor
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Learn: Factorising a cubic into three linear factors
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Worked Example: Factorising a cubic into a linear and a quadratic factor
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Learn: Solving a cubic once it has been factorised
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Worked Example: How many roots a cubic equation has
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Worked Example: Sentences that are not propositions
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Learn: How many rows a truth table needs
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Worked Example: Conjunction in a three-variable truth table
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Learn: The conditional statement, if p then q
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Worked Example: The truth table for the conditional
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