1,334 prompts matching "Halving the coefficient of x and squaring it"
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Worked Example: Matching each force to the sine of the angle opposite it
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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WAEC Prep: A random variable, and the values it may take
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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Worked Example: The probability of no events at all in a Poisson distribution
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Quiz: The area under the normal curve, and what it represents
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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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WAEC Prep: The probability that a normal variable exceeds the mean by more than one standard deviation
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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WAEC Prep: The zero vector, and what it means
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Worked Example: Finding the unit vector in the direction of a given vector
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Learn: The unit vectors i, j and k
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Worked Example: The position vector of the midpoint of AB
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Worked Example: The triangle law of vector addition
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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Worked Example: The powers of i, and the cycle they follow
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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WAEC Prep: The indefinite integral, and its notation
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Learn: An area lying below the x-axis, and its sign
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