1,326 prompts matching "What the formula gives when the discriminant is negative"
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WAEC Prep: The probability that a normal variable lies below a given value
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Quiz: The probability in the upper tail of a normal distribution
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WAEC Prep: When a Poisson distribution approximates a binomial one
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Quiz: Reading the wording of a question to decide which distribution applies
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WAEC Prep: The zero vector, and what it means
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Quiz: The direction of a vector as an angle with the x-axis
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WAEC Prep: The vector equation of a line through a point in a given direction
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Quiz: The vector equation of the line through two given points
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WAEC Prep: The resultant force on a particle given in i and j form
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Explain Back: The resultant of forces given as vectors
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WAEC Prep: Why the square root of a negative number needs i
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Explain Back: The locus of a complex number at a fixed distance from a point
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WAEC Prep: De Moivre's theorem used with a negative index
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Explain Back: Raising a complex number to a power by de Moivre's theorem
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Learn: An area lying below the x-axis, and its sign
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Practice: The sign convention for displacement, velocity and acceleration
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WAEC Prep: The angle of projection that gives the greatest range
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Practice: The conservation of momentum in a collision
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WAEC Prep: A geometric progression in which one term is given as a product
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WAEC Prep: Why the sum to infinity fails when the ratio reaches one
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