524 prompts matching "Proving that root 2 is irrational"
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Show All Working: Checking a rationalised answer by decimal approximation
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WAEC Prep: Expressing the answer in the form a plus b root c
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Learn: Solving an equation with a single square root term
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WAEC Prep: Equating the rational and the irrational parts of an equation
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Show All Working: Showing a set is not closed by a single counter-example
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Common Mistakes: Closure on a set of three elements under a stated rule
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Common Mistakes: Subtraction as an example of neither law
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Show All Working: Using distributivity to simplify an expression
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Common Mistakes: Distributivity on a set of three elements
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Common Mistakes: Checking an inverse by working the operation both ways
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Common Mistakes: Why the index laws need the bases to match
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Show All Working: Simplifying an expression that mixes the index types
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Show All Working: A word problem that leads to an indicial equation
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Common Mistakes: An indicial equation solved by substitution
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Common Mistakes: Reading a logarithm from a table
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Show All Working: Deciding whether a given number is a term of a sequence
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Common Mistakes: The Fibonacci sequence and the rule behind it
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Common Mistakes: An arithmetic progression with a negative common difference
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Common Mistakes: Inserting a geometric mean between two numbers
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