1,327 prompts matching "Learn: The formula for the sum of the first n terms of a geometric progression"
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Spot My Mistake: Why friction does not depend on the area of contact
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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Worked Example: Finding a particular term of a binomial expansion
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Spot My Mistake: The probability of exactly r successes in n trials
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Quiz: The standard deviation of a Poisson 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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Quiz: The probability in the upper tail of a normal distribution
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Quiz: Reading the wording of a question to decide which distribution applies
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Quiz: The direction cosines of a vector in three dimensions
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Quiz: The direction of a vector as an angle with the x-axis
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WAEC Prep: Using a unit vector to write a force of given size
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Quiz: The vector equation of the line through two given points
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Quiz: The product of a complex number and its conjugate
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Quiz: The argument of a complex number
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Quiz: The roots of a complex number shown on an Argand diagram
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Learn: Differentiating sin of a multiple of x
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Spot My Mistake: Finding the constant of integration from a given point
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Learn: Integrating a polynomial term by term
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Practice: The sign convention for displacement, velocity and acceleration
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