698 prompts matching "Finding a coefficient of a cubic given one of its roots"
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Empty set and its notation
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Sum of the first n terms of an arithmetic series
I am in SS 1. I attempted an Additional Maths question on using the formula Sn = n/2 (2a +
Sum of the first n terms of a geometric series
I am in SS 1. I'm going to explain using the formula Sn = a(r^n - 1)/(r - 1) to find the s
Length of a line segment on a graph
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Coordinate geometry proof: right-angled triangle
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Coordinate geometry proof: isosceles triangle
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Distance from a point to the centre of a circle
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Gradient as a rate of change interpretation
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Expanding a product of two brackets
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Expanding a product of three brackets
I am in SS 1. I'm going to explain expanding a product of three linear brackets, such as (
Factorising the sum and difference of two cubes
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on fact
Changing the subject of a simple formula
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Practice: Deciding whether root 16 is rational or irrational
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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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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Common Mistakes: Expanding the product of two surd brackets
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Common Mistakes: Closure on a set of three elements under a stated rule
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Common Mistakes: Subtraction as an example of neither law
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