755 prompts matching "The probability that a normal variable lies below a given value"
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Sequences given by a recurrence relation
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Explaining the difference between a sequence and a series
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Finding the centre and radius from a circle's equation
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Simultaneous equations of a line and the coordinate axes
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Factorising the difference of two squares
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Factorising the sum and difference of two cubes
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Solving a linear inequality and showing the solution
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Changing the subject of a simple formula
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Changing the subject with a square or square root
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Explaining the difference between an expression and an equation
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Worked Example: Why the square root of a non-square whole number is irrational
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Practice: Deciding whether root 16 is rational or irrational
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Explain Back: Where the surds sit on the number line
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Spot My Mistake: The decimal expansion of an irrational number, and why it never repeats
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Quiz: Reducing two surds to the same root in order to compare them
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Quiz: Subtracting one surd from another
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Spot My Mistake: Dividing one surd by another
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Learn: Why a surd is never left in the denominator
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Quiz: Rationalising a denominator of the form one over root 3
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