1,223 prompts matching "Practice: Showing that x plus 3 is a factor of a given polynomial"
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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Worked Example: Finding a value from a given probability by working backwards
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WAEC Prep: When a Poisson distribution approximates a binomial one
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WAEC Prep: A question whose wording hides which distribution is meant
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WAEC Prep: Choosing between a binomial and a Poisson model
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Spot My Mistake: When the normal distribution may approximate the binomial
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Worked Example: The continuity correction when approximating a discrete distribution
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Quiz: The direction cosines of a vector in three dimensions
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Worked Example: The distance between two points in three dimensions
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WAEC Prep: The distance between two points from their position vectors
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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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Explain Back: The dot product of two perpendicular vectors
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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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Practice: Equating real and imaginary parts to find two unknowns
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Quiz: The product of a complex number and its conjugate
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Quiz: The argument of a complex number
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Explain Back: Raising a complex number to a power by de Moivre's theorem
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Quiz: The roots of a complex number shown on an Argand diagram
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