1,324 prompts matching "Closure on a set of three elements under a stated rule"
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Final Revision: The power set, and how many subsets a set of n elements has
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WAEC Prep: The number of elements in the union of two sets
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Spot My Mistake: Finding the inverse of an element under a binary operation
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Final Revision: Deciding whether a set under an operation forms a group
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Worked Example: Checking the solution of three equations by substitution
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Worked Example: The total moment of three parallel forces about one end
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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WAEC Prep: A vector of magnitude one in three dimensions
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Quiz: The complement of a set within a stated universal set
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Explain Back: Finding the identity element of a binary operation
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Final Revision: The region of the plane satisfying a set of linear inequalities
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Learn: The component of a force along a stated direction
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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Learn: Finding the coefficient of a stated power in an expansion
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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Learn: The coordinates of a point in three dimensions
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Quiz: The direction cosines of a vector in three dimensions
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Learn: The magnitude of a three-dimensional vector
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