1,322 prompts matching "Simplifying the answer once the denominator is rational"
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Quiz: The magnitude of the resultant of several coplanar forces
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Explain Back: Showing that a system of concurrent forces is in equilibrium
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Learn: Choosing the point about which to take moments
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Quiz: The coefficient of friction between two surfaces
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Learn: The algebraic sum of moments when the senses differ
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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Learn: Finding two unknown forces by Lami's theorem
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Explain Back: A probability distribution table for a discrete random variable
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Learn: Finding the coefficient of a stated power in an expansion
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Quiz: The area under the normal curve, and what it represents
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Learn: The probability that a normal variable lies between two values
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Spot My Mistake: Drawing a vector as a directed line segment
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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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Learn: The unit vectors i, j and k
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Learn: Subtracting one vector from another
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Learn: The angle between a vector and one of the axes
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Quiz: The vector equation of the line through two given points
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