755 prompts matching "The range of values of x for which an expression stays positive"
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Show All Working: A conjugate where the surd term comes first
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Learn: Solving an equation with a single square root term
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Practice: Solving an equation with a surd on each side
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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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Spot My Mistake: A binary operation defined on a set of three elements
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Practice: Testing a set for closure under multiplication
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Quiz: Reading commutativity off a symmetrical operation table
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Practice: An operation that is not commutative, with a counter-example
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Show All Working: An operation that is associative but not commutative
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Learn: What an identity element is
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Practice: Why an identity element must work from both sides
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Show All Working: An element with no inverse under a given operation
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Common Mistakes: Writing a root as a fractional index before simplifying
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Practice: Solving 2 to the power x equals 32
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Show All Working: A word problem that leads to an indicial equation
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Show All Working: The common logarithm, to base ten
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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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Show All Working: Deciding whether a number belongs to a given arithmetic progression
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Practice: Reversing the sign when multiplying by a negative number
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