1,334 prompts matching "The sum to infinity of a geometric progression, and when it exists"
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Spot My Mistake: Drawing the triangle of forces to scale to find an unknown force
Act as my SS3 Further Mathematics tutor. Work a question on drawing the triangle of forces
Practice: Why the forces must sum to nought in two perpendicular directions
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WAEC Prep: The moment of two equal and opposite parallel forces
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WAEC Prep: The total moment of two forces about the same point
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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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Quiz: A rod resting against a wall, and the concurrence of its three forces
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WAEC Prep: The variance of 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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Learn: The expectation of a discrete random variable
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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WAEC Prep: The binomial expansion of a plus b all to the power n
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Learn: The standard deviation of a binomial distribution
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WAEC Prep: Using the mean of a Poisson distribution to find a probability
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Quiz: The standard deviation of a Poisson distribution
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Learn: The mean, median and mode of a normal distribution
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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Quiz: Reading the wording of a question to decide which distribution applies
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WAEC Prep: The position of a point in space written as a vector
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Quiz: The direction cosines of a vector in three dimensions
Act as my SS3 Further Mathematics tutor and quiz me on the direction cosines of a vector i