755 prompts matching "Restricting the domain so an inverse exists"
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Final Revision: Checking a conjugate answer by multiplying back
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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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Final Revision: A word problem that leads to an equation in surd form
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Final Revision: Deciding whether a given rule really is a binary operation
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Quiz: Testing the odd numbers for closure under addition
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Spot My Mistake: Reading closure off an operation table
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Practice: An operation that is not commutative, with a counter-example
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Quiz: Left distributivity and right distributivity
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Show All Working: Using distributivity to simplify an expression
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Practice: Why an identity element must work from both sides
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Quiz: The law for dividing powers of the same base
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Spot My Mistake: The law for a quotient raised to a power
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Show All Working: Simplifying an expression with letters and indices
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Final Revision: Evaluating a numerical expression using the index laws
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Quiz: A negative index on a fraction, and turning it upside down
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WAEC Prep: Evaluating 8 to the power two-thirds
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Final Revision: Converting an answer back out of index form
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Quiz: An indicial equation that becomes a quadratic in a power
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Spot My Mistake: An indicial equation involving fractional bases
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