552 prompts matching "Finding a missing coefficient from a stated sum of roots"
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Learn: The conjugate of a compound surd expression
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Quiz: Checking a surd equation for extraneous roots
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Quiz: Reading commutativity off a symmetrical operation table
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Quiz: The law for dividing powers of the same base
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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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Learn: The definition of a logarithm as the index
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Practice: Evaluating log to base 2 of 8
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Common Mistakes: Reading a logarithm from a table
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Learn: The law for the logarithm of a product
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Quiz: The law for the logarithm of a power
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Common Mistakes: Rejecting a root that makes a logarithm undefined
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Final Revision: Proving a logarithmic identity from the laws
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Learn: The change of base formula
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Quiz: Evaluating log to base 3 of 7 by change of base
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Practice: The relation between log a of b and log b of a
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Quiz: The formula for the nth term of an arithmetic progression
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Common Mistakes: Proving the sum formula by pairing the terms
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Quiz: The formula for the nth term of a geometric progression
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Final Revision: Proving the sum formula for a geometric progression
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