1,331 prompts matching "Choosing between factorising and the formula"
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Spot My Mistake: Why friction does not depend on the area of contact
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WAEC Prep: The moment of a force about the foot of a pole
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WAEC Prep: The moment of a weight about a hinge
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Spot My Mistake: The moment of a force whose line of action is not perpendicular
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WAEC Prep: The total moment of two forces about the same point
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Learn: The algebraic sum of moments when the senses differ
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Quiz: The point about which the total moment of a set of forces vanishes
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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WAEC Prep: Lami's theorem derived from the triangle of forces
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WAEC Prep: A lamp hanging from two wires, solved by Lami's theorem
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WAEC Prep: The statement of Lami's theorem
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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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Spot My Mistake: Why the probabilities in a distribution must sum to one
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WAEC Prep: The binomial expansion of a plus b all to the power n
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Learn: Finding the coefficient of a stated power in an expansion
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WAEC Prep: The probability of at most r successes
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WAEC Prep: The most likely number of successes in n trials
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WAEC Prep: The four conditions a binomial situation must satisfy
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