1,235 prompts matching "A tautology used to justify a rule of algebra"
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Quiz: Checking an inverse by multiplying to get the identity
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: The newton, and how it is defined
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Learn: Converting a weight given in kilogram-force into newtons
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WAEC Prep: The resultant of two forces acting at the same point
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WAEC Prep: The magnitude of the resultant of two forces inclined at an angle
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WAEC Prep: Resolving a force into horizontal and vertical components
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WAEC Prep: Summing the components of several concurrent forces
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WAEC Prep: The triangle of forces for three forces in equilibrium
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WAEC Prep: The two conditions for a rigid body to be in equilibrium
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Practice: Why the forces must sum to nought in two perpendicular directions
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Explain Back: Why the total moment about any point must be nought
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Learn: Choosing the point about which to take moments
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WAEC Prep: The polygon of forces for several forces in equilibrium
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WAEC Prep: A body just about to slide on a horizontal surface
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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WAEC Prep: The statement of Lami's theorem
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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Practice: Using a binomial expansion to approximate a number
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