727 prompts matching "testing an argument for validity"
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Simplifying indices before adding like terms
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Index law shortcuts for mental exam questions
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Explaining why a^1/n means the nth root of a
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Multiplying a surd by an integer
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Expanding brackets containing surds
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Expanding a binomial surd bracket
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Surd answers in area and perimeter questions
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Rationalising and then simplifying fully
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Solving a surd equation that gives an extraneous root
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Reviewing every surd rule before a test
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Common surd mistakes to watch out for
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Reading and writing set notation
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Finite and infinite sets
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Universal set and its role in set problems
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Logical reasoning with 'and' versus 'or' in sets
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Empty set and its notation
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Distributive law for sets
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Arithmetic mean between two numbers
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Geometric mean between two numbers
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Sigma notation for a sum
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