707 prompts matching "sum to infinity of a geometric series"
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Distinguishing gradient sign: positive, negative, zero, undefined
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Expanding and simplifying with negative brackets
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Dividing algebraic fractions
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Representing a solution set on a number line
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Solving simultaneous linear equations by substitution
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Solving simultaneous linear equations by elimination
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Changing the subject when the variable appears twice
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Solving a word problem using simultaneous equations
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Explaining the difference between an expression and an equation
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Common sign errors in algebraic manipulation
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Learn: Telling a rational number from an irrational one
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Learn: What makes two surds similar
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Final Revision: Surds that cannot be combined at all
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Final Revision: Expressing a rationalised answer in the form a root b over c
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Final Revision: Checking a conjugate answer by multiplying back
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Learn: Solving an equation with a single square root term
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Common Mistakes: A surd equation that has no real solution
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Learn: What a binary operation actually is
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Common Mistakes: A binary operation that is ordinary addition in disguise
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Final Revision: Deciding whether a given rule really is a binary operation
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