1,327 prompts matching "Learn: The formula for the sum of the first n terms of an arithmetic progression"
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WAEC Prep: Circular permutations of n objects round a table
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Explain Back: Choosing a committee with a stated number from each of two groups
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Spot My Mistake: The identity that n choose r equals n choose n minus r
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Show All Working: Counting the handshakes, or the lines joining n points
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Common Mistakes: Selections in which at least one of a kind must appear
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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Show All Working: Solving a cos x plus b sin x equals c by the R method
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Quiz: The tangent curve and its asymptotes
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WAEC Prep: A phase shift in y equals sin of x minus d
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Common Mistakes: Sketching two trigonometric curves on the same axes to find where they meet
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Show All Working: Proving two given lines perpendicular from their gradients
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Common Mistakes: The angle between two lines found from their gradients
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Quiz: Finding the centre and the radius from the general equation
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Show All Working: The rectangular hyperbola xy equals c squared
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Quiz: The semi-interquartile range
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Spot My Mistake: The point at which a loaded beam will tip about its support
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Quiz: Relative velocity when the two motions are at right angles
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Show All Working: The time at which two bodies are nearest one another
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Learn: Two particles joined by a light inextensible string over a smooth pulley
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Quiz: The tension in the string joining two connected particles
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