755 prompts matching "Three roots in arithmetic progression in a cubic"
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Practice: Deciding whether root 16 is rational or irrational
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Final Revision: Approximating a surd to three decimal places
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Quiz: Reducing two surds to the same root in order to compare them
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Explain Back: Why 2 root 3 and 5 root 3 count as similar surds
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Common Mistakes: Expressing root 50 as a multiple of root 2
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Learn: Simplifying root 72 into its simplest form
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Worked Example: Adding two surds that simplify to the same root
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Explain Back: Multiplying root a by root b
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Quiz: Rationalising a denominator of the form one over root 3
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Quiz: Rationalising a denominator of the form one over 2 plus root 3
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Practice: Rationalising a denominator of the form a plus root b over c minus root d
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WAEC Prep: Expressing the answer in the form a plus b root c
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Learn: Solving an equation with a single square root term
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Quiz: Checking a surd equation for extraneous roots
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Show All Working: Finding a and b when a plus b root 2 equals a given surd
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Spot My Mistake: A binary operation defined on a set of three elements
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Practice: Multiplication distributing over addition in ordinary arithmetic
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Practice: A fractional index with numerator one, read as a root
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Common Mistakes: Writing a root as a fractional index before simplifying
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