755 prompts matching "Give me practice on probability using combinatorics"
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Proper subsets versus subsets
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Explaining the difference between a sequence and a series
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Sum of a series expressed with algebraic terms
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Gradient of a line joining two points
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Area of a triangle from three coordinates
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Distance from a point to the centre of a circle
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Perpendicular from a point to a line
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Locus problem: points equidistant from two fixed points
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Factorising the sum and difference of two cubes
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Power of a power rule
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Zero index rule
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Indices word problem: bacteria growth
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Comparing the size of two large index numbers
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Simplifying before substituting a value
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Solving 9^x x 3^(x+1) = 1
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Index laws with an unknown letter base
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Verifying an index law with numbers
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Simplifying indices before adding like terms
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Reviewing all the laws of indices before a test
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What makes a number a surd
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