755 prompts matching "The perpendicular distance from a point to a line"
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Coordinate geometry applied to a triangle's area check
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Fractional indices with numerator above 1
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Index equations reducing to a quadratic
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Laws of indices with three different bases in one line
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Rationalising a more complex conjugate denominator
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Explaining why we rationalise denominators
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Surd equation from a geometry context
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Surds in a coordinate geometry distance calculation
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Number of elements in a set from a Venn diagram region count
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Sum of the first n terms of an arithmetic series
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Finding the number of terms in an arithmetic series
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Deciding whether a geometric series converges
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Factorising by taking out a common factor
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Representing a solution set on a number line
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Solving simultaneous linear equations by substitution
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Solving simultaneous linear equations by elimination
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Changing the subject of a simple formula
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Cross-multiplying to solve an equation with fractions
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Learn: Telling a rational number from an irrational one
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Worked Example: Why the square root of a non-square whole number is irrational
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