1,045 prompts matching "The discriminant, and what each of its three cases means"
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Find the value of k for a line to be tangent to a curve
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Teach me what a polynomial is
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Quiz me on when a conjunction of three statements is true
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Quiz me on the inclusive sense of 'or' in a disjunction
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Teach me converse and inverse propositions
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Teach me probability using permutations and combinations
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Teach me the binomial expansion formula
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Worked example: expanding (2x-3)^5 using the binomial formula
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Quiz me on the laws of logarithms used to solve an equation
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Teach me adding and subtracting complex numbers
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Teach me adding and subtracting matrices
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Teach me adding and subtracting vectors
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Teach me mean, variance and standard deviation
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Teach me measures of dispersion for grouped data
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Summarise polynomials and the remainder/factor theorems for quick revision
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Test me under exam conditions on polynomials and the remainder/factor theorems
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Worked example: find the magnitude of the vector (3,4)
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Worked example: find the unit vector in the direction of (6,8)
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Real-life application of sum and product of roots
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Real-life application of testing the validity of an argument
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