1,276 prompts matching "Learn: What a sequence is, and what a term means"
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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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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Worked Example: The probability of no events at all in a Poisson distribution
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Worked Example: The continuity correction when approximating a discrete distribution
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Practice: The components of a vector given its magnitude and direction
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Spot My Mistake: Drawing a vector as a directed line segment
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Worked Example: The distance between two points in three dimensions
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Spot My Mistake: The equilibrium condition written in vector form
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Worked Example: The powers of i, and the cycle they follow
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Practice: Equating real and imaginary parts to find two unknowns
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Spot My Mistake: Dividing one complex number by another using the conjugate
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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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Practice: The addition of complex numbers shown on an Argand diagram
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Quiz: The roots of a complex number shown on an Argand diagram
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