1,235 prompts matching "A tautology used to justify a rule of algebra"
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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 z-score of a value that lies below the mean
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Quiz: The probability in the upper tail of a normal distribution
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Learn: The coordinates of a point in three dimensions
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Practice: The dot product as the magnitudes times the cosine of the angle
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Worked Example: Testing two vectors for perpendicularity
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WAEC Prep: Why the square root of a negative number needs i
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WAEC Prep: Writing the square root of minus nine in terms of i
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Learn: The real and the imaginary parts of a complex number
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WAEC Prep: The geometric meaning of adding two complex numbers
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WAEC Prep: The conjugate of a purely imaginary number
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WAEC Prep: The conjugate of a product of two complex numbers
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Quiz: The product of a complex number and its conjugate
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Practice: The sum of a complex number and its conjugate
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WAEC Prep: The modulus of a product of two complex numbers
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Quiz: The argument of a complex number
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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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Practice: The addition of complex numbers shown on an Argand diagram
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