1,044 prompts matching "Practice: Why the forces must sum to nought in two perpendicular directions"
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Worked Example: Arranging r of n objects in a line
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Quiz: Arrangements of a word with no repeated letters
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Spot My Mistake: Arrangements with two particular items adjacent
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Learn: What makes a permutation cyclic
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Explain Back: Circular arrangements with two people kept apart
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Spot My Mistake: Arrangements round a table with men and women alternating
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Common Mistakes: Comparing a line arrangement with a circular one
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Final Revision: A word problem about seating at a round table
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Learn: Selecting a team of five from a squad
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Spot My Mistake: A selection with at least a stated number of one kind
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Final Revision: A word problem about choosing a delegation
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Explain Back: Probability with replacement and without replacement
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Common Mistakes: A probability found by counting arrangements
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Final Revision: A word problem about a lottery draw
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Learn: Building Pascal's triangle row by row
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Spot My Mistake: Expanding a bracket with a minus sign inside it
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IGCSE Additional Maths Y11: An angle given as a multiple of pi — Common Mistakes
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IGCSE Additional Maths Y11: A real problem about a fan or a windscreen wiper — Exam Technique
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IGCSE Additional Maths Y11: Giving an exact answer in terms of pi — Exam Technique
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IGCSE Additional Maths Y11: Finding every angle in a range with a given sine — Common Mistakes
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