1,333 prompts matching "Why a rational number added to an irrational one stays irrational"
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Worked Example: The probability of no events at all in a Poisson distribution
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Worked Example: Finding a value from a given probability by working backwards
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Learn: The probability that a normal variable lies between two values
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Quiz: The probability in the upper tail of a normal distribution
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Spot My Mistake: When the normal distribution may approximate the binomial
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Worked Example: The continuity correction when approximating a discrete distribution
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Learn: The coordinates of a point in three dimensions
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Learn: The cube roots of unity
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Worked Example: The quotient rule for differentiation
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Learn: Differentiating sin of a multiple of x
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Spot My Mistake: Classifying a stationary point by the second derivative
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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Learn: Integrating a polynomial term by term
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Learn: Finding displacement by integrating velocity
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Quiz: The time of flight of a projectile
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Worked Example: Power as the rate of doing work
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Learn: The kinetic energy of a moving body
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Spot My Mistake: Finding the common ratio from two given terms
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Quiz: The modal class of a grouped frequency distribution
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Multiply matrices step by step #1
Show me how to multiply A=[[2,1],[0,-3]], B=[[1,-2],[4,3]] using the row-times-column meth