1,043 prompts matching "Why the total area under the normal curve is one"
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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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Explain Back: The sum of the entries in a row of Pascal's triangle
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Show All Working: The binomial coefficients written as n choose r
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Learn: The formula for the general term of an expansion
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Explain Back: Finding the coefficient of a named term
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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 perimeter of a sector — Show All Working
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IGCSE Additional Maths Y11: The reference angle of an obtuse angle — Quiz Me
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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 ratios of an angle given in radians — Exam Technique
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IGCSE Additional Maths Y11: The maximum and minimum points of a cosine graph — Quiz Me
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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: Comparing the sine graph with the cosine graph — Exam Technique
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IGCSE Additional Maths Y11: The identity for one minus cos squared — Show All Working
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IGCSE Additional Maths Y11: The commonest error made in proving an identity — Exam Technique
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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: An equation that factorises into two ratios — Spot My Mistake
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IGCSE Additional Maths Y11: Finding every solution rather than only the first — 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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