1,333 prompts matching "Discriminant and the nature of roots"
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Practice: Finding the third root of a cubic when two are known
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Find the number of ways command word: combinations
I am in SS 3. Set me an exam question phrased 'find the number of ways', involving choosin
Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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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: Reading the solution off the product of the inverse and the constants
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Worked Example: The units of mass, and the SI unit
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Spot My Mistake: The greatest and the least resultant of two given forces
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Explain Back: The units of a moment, and why they are newton metres
I have just studied the units of a moment, and why they are newton metres in my SS3 Furthe
WAEC Prep: The resultant moment of a couple and a force together
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WAEC Prep: The moment of two equal and opposite parallel forces
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WAEC Prep: The triangle of forces and concurrence taken together
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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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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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Learn: The standard deviation of a binomial distribution
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WAEC Prep: Why the mean and the variance of a Poisson distribution are equal
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Quiz: The standard deviation of a Poisson distribution
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WAEC Prep: The shape and the symmetry of the normal curve
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