1,331 prompts matching "Which form of the sum formula to use when r is less than one"
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WAEC Prep: The points of inflexion of the normal curve
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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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WAEC Prep: Writing a two-dimensional vector in i and j form
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WAEC Prep: Writing a three-dimensional vector in i, j and k form
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: Using a unit vector to write a force of given size
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Learn: The unit vectors i, j and k
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Practice: A vector of stated magnitude in a given direction
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WAEC Prep: Adding three vectors in component form
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WAEC Prep: Adding two vectors given in component form
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Learn: Subtracting one vector from another
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Practice: The dot product as the magnitudes times the cosine of the angle
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WAEC Prep: The resultant force on a particle given in i and j form
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WAEC Prep: Writing a force as a vector in i and j form
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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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Worked Example: The powers of i, and the cycle they follow
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WAEC Prep: The geometric meaning of adding two complex numbers
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