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Final Revision: Why brackets matter when an operation is not associative
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Learn: What an identity element is
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Common Mistakes: Writing a root as a fractional index before simplifying
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Common Mistakes: An indicial equation solved by substitution
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Final Revision: Checking an indicial solution by substitution
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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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Learn: What a sequence is, and what a term means
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Learn: What makes a sequence an arithmetic progression
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Common Mistakes: An arithmetic progression with a negative common difference
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Final Revision: Inserting an arithmetic mean between two numbers
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Final Revision: A savings problem modelled by an arithmetic progression
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Learn: What makes a sequence a geometric progression
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Common Mistakes: Inserting a geometric mean between two numbers
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Common Mistakes: A double inequality such as 2 less than x less than 7
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Zero index rule
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Negative indices as fractions
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Negative indices in algebraic fractions
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Fractional indices as roots
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