1,324 prompts matching "determine whether the argument 'if p then q; p; therefore q' is valid using a tr"
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WAEC Prep: Why the mean and the variance of a Poisson distribution are equal
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WAEC Prep: Why the total area under the normal curve is one
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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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Practice: Using the normal tables when the z-score is negative
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Worked Example: The continuity correction when approximating a discrete distribution
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Worked Example: The distance between two points in three dimensions
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WAEC Prep: The unit vector in the direction of a displacement
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WAEC Prep: The distance between two points from their position vectors
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WAEC Prep: Showing a triangle is right-angled using the dot product
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Practice: Deciding whether a point lies on a given line
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Spot My Mistake: The equilibrium condition written in vector form
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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Spot My Mistake: Dividing one complex number by another using the conjugate
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WAEC Prep: The conjugate of a complex number, and how it is written
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Practice: The argument of a complex number in the second or third quadrant
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WAEC Prep: The locus of a complex number equidistant from two points
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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WAEC Prep: Why the limit is taken as h tends to nought
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Worked Example: The quotient rule for differentiation
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