1,327 prompts matching "Forming an algebraic expression from a word problem"
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Final revision: my three hardest Further Maths topics
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Learn: The union of two sets written in set-builder notation
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Worked Example: The intersection of two overlapping sets
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Explain Back: The symmetric difference of two sets
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WAEC Prep: The number of elements in the union of two sets
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Common Mistakes: Showing that intersection distributes over union
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Learn: Reading a binary operation defined by a formula such as a*b = a + b - ab
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Worked Example: Testing whether a binary operation is closed on a given set
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Explain Back: Finding the identity element of a binary operation
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Common Mistakes: A binary operation defined by arithmetic modulo n
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Learn: Simplifying a surd by extracting the largest perfect square
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Worked Example: Collecting like surds in a single sum
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Explain Back: Rationalising a denominator of the form a plus root b using the conjugate
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Spot My Mistake: Squaring a bracket that contains a surd
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WAEC Prep: Comparing the sizes of two surds without a calculator
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Show All Working: Expressing a number in the form a root b
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Final Revision: Proving that root 2 is irrational
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Spot My Mistake: The power law of logarithms
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Final Revision: Sketching the graph of a logarithmic function
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Show All Working: Solving a quadratic by completing the square
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