1,045 prompts matching "The discriminant, and what each of its three cases means"
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Practice: Giving the roots correct to two decimal places
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Practice: Forming an equation from a given sum and product
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Quiz: Solving the quadratic that results from the substitution
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Explain Back: Writing the answers as ordered pairs
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Practice: The condition for the line to be a tangent
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Explain Back: The condition for the line never to meet the curve
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Quiz: The remainder on dividing by x plus 2
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Practice: The remainder on dividing by 2x minus 1
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Explain Back: Finding a coefficient when the remainder is given
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Spot My Mistake: The factor theorem applied to a quartic
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Worked Example: Factorising a cubic into a linear and a quadratic factor
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Practice: A cubic with one real root and two complex ones
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Spot My Mistake: Finding the remaining roots once one is known
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Worked Example: Conjunction in a three-variable truth table
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Explain Back: The truth table for a statement with two connectives
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Quiz: The biconditional as two conditionals taken together
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Worked Example: What a contradiction is
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Worked Example: Premises and conclusion
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Worked Example: Arranging r of n objects in a line
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Explain Back: Arrangements restricted at the first letter
I have just studied arrangements restricted at the first letter in my SS2 Further Mathemat