1,093 prompts matching "When to use permutations versus combinations"
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Learn: The equation of a circle with its centre at the origin
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Quiz: Finding the centre and the radius from the general equation
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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Spot My Mistake: The foci of an ellipse
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Learn: The range, and why it is a weak measure of spread
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Quiz: The semi-interquartile range
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Spot My Mistake: The standard deviation of an ungrouped set of data
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Learn: The moment of a force about a point, and its units
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Quiz: The principle of moments for a body in equilibrium
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Spot My Mistake: The point at which a loaded beam will tip about its support
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
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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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Quiz: The acceleration of a body sliding down a smooth incline
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Quiz: The centripetal force, and what supplies it in a given situation
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Spot My Mistake: A body on the end of a string moving in a horizontal circle
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Learn: The defining equation of simple harmonic motion
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Quiz: The velocity of a body in simple harmonic motion at a given displacement
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Learn: Hooke's law, and what the modulus of elasticity means
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Quiz: The extension of a spring under a given load
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