755 prompts matching "Finding the identity element of a binary operation"
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Interpreting neither-nor in a Venn diagram problem
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Set theory laws: commutative and associative
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Reviewing set theory before a class test
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Deciding whether a geometric series converges
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Deriving the arithmetic series sum formula
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Deriving the geometric series sum formula
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Length of a line segment on a graph
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Gradient as a rate of change interpretation
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Expanding a product of two brackets
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Expanding a product of three brackets
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Changing the subject when the variable appears twice
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Changing the subject with a square or square root
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Factorising a quadratic with a coefficient in front of x squared
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Explaining the difference between an expression and an equation
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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WAEC Prep: Ordering a list of surds by size
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Show All Working: Deciding whether two given surds are equal without a calculator
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Common Mistakes: Expressing root 50 as a multiple of root 2
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Learn: Why a surd is never left in the denominator
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Final Revision: Expressing a rationalised answer in the form a root b over c
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