1,324 prompts matching "Closure on a set of three elements under a stated rule"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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Learn: Inertia, and what mass actually measures
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Quiz: Why mass stays the same wherever the body is taken
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Learn: A space diagram and a force diagram drawn side by side
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Learn: Choosing the point about which to take moments
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Learn: Finding two unknown forces by Lami's theorem
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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Spot My Mistake: Reading a probability from the standard normal table
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Learn: The probability that a normal variable lies between two values
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Practice: Using the normal tables when the z-score is negative
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Spot My Mistake: Drawing a vector as a directed line segment
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Learn: The unit vectors i, j and k
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Practice: Equating real and imaginary parts to find two unknowns
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Quiz: Writing a complex number in polar form
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Practice: Differentiating x squared from first principles
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Practice: Differentiating sin x and cos x
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Learn: Choosing between the product rule and the quotient rule
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Learn: Integrating a polynomial term by term
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Learn: An area lying below the x-axis, and its sign
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