1,333 prompts matching "a GP where the 2nd term is 6 and the 5th term is 162, find the first term and co"
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Quiz: Expanding a 3 by 3 determinant along a row or column containing noughts
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Practice: The sign pattern of the cofactors in a 3 by 3 determinant
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Learn: Swapping and negating the entries when inverting a 2 by 2 matrix
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Spot My Mistake: The moment of a force whose line of action is not perpendicular
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Quiz: The point about which the total moment of a set of forces vanishes
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Explain Back: A probability distribution table for a discrete random variable
I have just studied a probability distribution table for a discrete random variable in my
Spot My Mistake: Why the probabilities in a distribution must sum to one
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Quiz: The situations a Poisson distribution models
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Practice: The probability of exactly r events in a Poisson distribution
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Practice: The variance of a binomial distribution as npq
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Quiz: The probability in the upper tail of a normal distribution
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Practice: Using the normal tables when the z-score is negative
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Spot My Mistake: When the normal distribution may approximate the binomial
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Quiz: Reading the wording of a question to decide which distribution applies
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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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Learn: The angle between a vector and one of the axes
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Learn: The real and the imaginary parts of a complex number
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Learn: Choosing between the product rule and the quotient rule
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Practice: The conservation of momentum in a collision
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