1,332 prompts matching "Finding the centre and radius from a circle's equation"
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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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Explain Back: Testing whether data are Poisson by comparing mean and variance
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WAEC Prep: The shape and the symmetry of the normal curve
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Learn: The mean, median and mode of a normal distribution
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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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: 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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Learn: The angle between a vector and one of the axes
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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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Worked Example: The powers of i, and the cycle they follow
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Learn: The real and the imaginary parts of a complex number
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WAEC Prep: The conjugate of a complex number, and how it is written
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WAEC Prep: The modulus and the argument taken together
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WAEC Prep: The conjugate shown on an Argand diagram
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WAEC Prep: Plotting a complex number as a point on the Argand plane
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