1,328 prompts matching "Practice: A cubic with one real root and two complex ones"
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Quiz: The area under the normal curve, and what it represents
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WAEC Prep: Comparing two values from different normal distributions by z-score
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Spot My Mistake: Reading a probability from the standard normal table
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WAEC Prep: When a Poisson distribution approximates a binomial one
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WAEC Prep: Two vectors that are equal but drawn in different places
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: The magnitude of a two-dimensional vector
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Quiz: The direction of a vector as an angle with the x-axis
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Learn: The unit vectors i, j and k
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WAEC Prep: The distance between two points from their position vectors
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WAEC Prep: Adding three vectors in component form
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Learn: Subtracting one vector from another
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WAEC Prep: The dot product used to find the work done by a force
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WAEC Prep: The dot product worked out from components
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Explain Back: The dot product of two perpendicular vectors
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WAEC Prep: The angle between two three-dimensional vectors
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WAEC Prep: Finding the angle between two vectors from their dot product
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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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WAEC Prep: The geometric meaning of adding two complex numbers
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