1,334 prompts matching "Learn: What makes an expression in the roots symmetric"
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WAEC Prep: The mean of a binomial distribution as np
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Practice: The variance of a binomial distribution as npq
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WAEC Prep: The variance of a Poisson distribution over two intervals
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WAEC Prep: Using the mean of a Poisson distribution to find a probability
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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Spot My Mistake: Reading a probability from the standard normal table
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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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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Practice: The dot product as the magnitudes times the cosine of the angle
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WAEC Prep: Showing a triangle is right-angled using the dot product
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WAEC Prep: Finding the angle between two vectors from their dot product
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WAEC Prep: Converting the vector equation of a line into Cartesian form
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WAEC Prep: The resultant force on a particle given in i and j form
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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WAEC Prep: The geometric meaning of adding two complex numbers
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Quiz: Subtracting one complex number from another
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Spot My Mistake: Dividing one complex number by another using the conjugate
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WAEC Prep: The argument measured in radians
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Practice: The argument of a complex number in the second or third quadrant
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