727 prompts matching "testing an argument for validity"
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WAEC Prep: Solving an exponential equation by taking logarithms of both sides
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Final Revision: Using change of base to prove a stated relation
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WAEC Prep: A finite sequence and an infinite sequence
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Common Mistakes: The Fibonacci sequence and the rule behind it
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Final Revision: Describing a sequence in words and then in symbols
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WAEC Prep: Finding how many terms an arithmetic progression has
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Common Mistakes: An arithmetic progression with a negative common difference
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Final Revision: Inserting an arithmetic mean between two numbers
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Explain Back: Finding the first term from the sum and the common difference
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Final Revision: A savings problem modelled by an arithmetic progression
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Common Mistakes: Inserting a geometric mean between two numbers
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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Common Mistakes: A bouncing ball problem, and the total distance travelled
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Show All Working: Writing the solution of an inequality as a set
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Common Mistakes: A double inequality such as 2 less than x less than 7
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Explain Back: The solution when the quadratic expression is greater than nought
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Common Mistakes: A quadratic inequality that has to be rearranged first
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Explain Back: Solving an inequality such as modulus of 2x minus 1 less than 5
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IGCSE Additional Maths Y10: The image of an element under a function — Practice Set
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IGCSE Additional Maths Y10: A mapping diagram, and what it shows — Common Mistakes
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