1,153 prompts matching "IGCSE Additional Maths Y10: Finding k so that a quadratic has equal roots — Expl"
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Show all working: calculus and stationary points multi-part
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Learn: The union of two sets written in set-builder notation
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Worked Example: The intersection of two overlapping sets
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Show All Working: A three-set Venn diagram drawn from a subject survey
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Learn: Reading a binary operation defined by a formula such as a*b = a + b - ab
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Worked Example: Testing whether a binary operation is closed on a given set
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Learn: Simplifying a surd by extracting the largest perfect square
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Worked Example: Collecting like surds in a single sum
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Show All Working: Expressing a number in the form a root b
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Learn: The multiplication and division laws of indices used together
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Worked Example: Simplifying an expression carrying both a negative and a fractional index
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Learn: The sum and the product of the roots read from the coefficients
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Worked Example: The discriminant, and what each of its three cases means
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Learn: The degree of a polynomial and its leading coefficient
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Worked Example: Evaluating a polynomial by substitution
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Learn: The sum of the roots of a cubic read from its coefficients
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Worked Example: The sum of the products of the roots of a cubic taken two at a time
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Show All Working: Three roots in arithmetic progression in a cubic
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Learn: The meaning of n factorial, and how to evaluate it
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Worked Example: The number of arrangements of n different objects in a row
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