1,316 prompts matching "A pair that gives no real solution at all"
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WAEC Prep: A knot held in equilibrium by three strings
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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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Spot My Mistake: When Lami's theorem may be used, and when it may not
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Learn: The expectation of a discrete random variable
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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Worked Example: Finding a particular term of a binomial expansion
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Learn: Finding the coefficient of a stated power in an expansion
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WAEC Prep: Comparing the mean with the variance of a binomial distribution
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WAEC Prep: The mean of a binomial distribution as np
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Learn: Finding lambda from a stated mean
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WAEC Prep: The points of inflexion of the normal curve
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WAEC Prep: Why the total area under the normal curve is one
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WAEC Prep: The shape and the symmetry of the normal curve
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Learn: The mean, median and mode of a normal distribution
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WAEC Prep: Comparing two values from different normal distributions by z-score
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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Spot My Mistake: Reading a probability from the standard normal table
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Worked Example: Finding a value from a given probability by working backwards
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