494 prompts matching "Testing whether a relation is a function"
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Learn: What an identity element is
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Spot My Mistake: Finding the inverse of a given element
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Common Mistakes: Checking an inverse by working the operation both ways
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Practice: The law for a power raised to another power
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Common Mistakes: Why the index laws need the bases to match
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Learn: Why any non-zero number to the power nought is one
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Spot My Mistake: A negative fractional index
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Common Mistakes: Writing a root as a fractional index before simplifying
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Worked Example: Solving an indicial equation where one side must be factorised first
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Spot My Mistake: An indicial equation involving fractional bases
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Common Mistakes: An indicial equation solved by substitution
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Spot My Mistake: The logarithm of the base itself
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WAEC Prep: Why the logarithm of a negative number does not exist
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Common Mistakes: Reading a logarithm from a table
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Final Revision: The characteristic and the mantissa of a logarithm
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Spot My Mistake: Evaluating an expression using the laws of logarithms
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Common Mistakes: Rejecting a root that makes a logarithm undefined
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Practice: The relation between log a of b and log b of a
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Spot My Mistake: A logarithm to base e, the natural logarithm
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Common Mistakes: A logarithmic equation that becomes a quadratic
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