728 prompts matching "Explain-back: equilibrium of a rigid body"
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Common Mistakes: Arranging objects when some must stay in a fixed order
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Learn: What makes a permutation cyclic
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Show All Working: A circular arrangement with one fixed seat such as the head
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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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Worked Example: Selections in which the order does not matter
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Show All Working: Selecting a committee with the chairman named separately
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Final Revision: A word problem about choosing a delegation
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Learn: Probability as favourable outcomes over total outcomes
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Worked Example: Counting the total outcomes with combinations
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Show All Working: The complement rule used in a counting problem
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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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Show All Working: The binomial coefficients written as n choose r
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Common Mistakes: The link between Pascal's triangle and combinations
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Show All Working: The general term when the bracket contains a fraction
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Common Mistakes: The general term when one term in the bracket is negative
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Final Revision: A question asking for two coefficients to be equal
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IGCSE Additional Maths Y11: The arc length formula, s equals r theta — Practice Set
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Set me a practice set