992 prompts matching "Explaining why sum to infinity only works for |r| < 1"
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Show All Working: The fallacy of affirming the consequent
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Show All Working: Arrangements of boys and girls alternately
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WAEC Prep: Beads on a necklace, and why the count halves
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Show All Working: A circular arrangement with one fixed seat such as the head
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Show All Working: Selecting a committee with the chairman named separately
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Common Mistakes: The number of ways of dividing a class into groups
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Show All Working: The complement rule used in a counting problem
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Show All Working: The binomial coefficients written as n choose r
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Show All Working: The general term when the bracket contains a fraction
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IGCSE Additional Maths Y11: The arc length formula, s equals r theta — Practice Set
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IGCSE Additional Maths Y11: Finding the radius from a given sector area — IGCSE Exam Practice
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IGCSE Additional Maths Y11: The ratios of 0, 90, 180 and 270 degrees — Show All Working
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IGCSE Additional Maths Y11: The symmetry of the sine and cosine graphs — Show All Working
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IGCSE Additional Maths Y11: Proving an identity by turning everything into sine and cosine — Practice Set
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IGCSE Additional Maths Y11: Solving an equation of the form tan 3x equals a value — Quiz Me
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IGCSE Additional Maths Y11: Solving an equation that contains sec x — Show All Working
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IGCSE Additional Maths Y11: Permutations where one item is fixed in place — Show All Working
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IGCSE Additional Maths Y11: Combinations and permutations combined in one problem — Show All Working
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IGCSE Additional Maths Y11: The sum of the coefficients of an expansion — IGCSE Exam Practice
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IGCSE Additional Maths Y11: The greatest coefficient in an expansion — Show All Working
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