755 prompts matching "The range of values of x for which an expression stays positive"
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Worked Example: What makes two surds equal
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Worked Example: Rationalising a denominator that is a single surd
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Worked Example: Squaring both sides safely when solving a surd equation
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Spot My Mistake: Solving a surd equation that leads to a quadratic
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Common Mistakes: A surd equation that has no real solution
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Quiz: Evaluating a*b from a given rule
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Common Mistakes: A binary operation that is ordinary addition in disguise
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Spot My Mistake: Testing (a*b)*c against a*(b*c)
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Spot My Mistake: Checking distributivity from two operation tables
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Worked Example: Rewriting a negative index as a fraction
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Spot My Mistake: A negative fractional index
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Common Mistakes: Reading a logarithm from a table
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Common Mistakes: Rejecting a root that makes a logarithm undefined
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Common Mistakes: A logarithmic equation that becomes a quadratic
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Spot My Mistake: A sequence defined by a recurrence relation
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Spot My Mistake: A compound interest problem modelled by a geometric progression
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Quiz: Multiplying both sides by a positive number
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Spot My Mistake: Solving a linear inequality that contains a fraction
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Final Revision: A word problem that leads to a linear inequality
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Final Revision: A word problem that leads to a quadratic inequality
Act as my SS1 Further Mathematics tutor at the end of the term. Give me a rapid recap of a