755 prompts matching "Finding the adjoint of a 3 by 3 matrix"
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Deciding whether a geometric series converges
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Deriving the arithmetic series sum formula
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Gradient of a line joining two points
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Equation of a line given gradient and one point
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Area of a triangle from three coordinates
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Length of a line segment on a graph
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Equation of a line with a given y-intercept and passing through a point
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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 when the variable appears twice
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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Show All Working: Deciding whether two given surds are equal without a calculator
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Show All Working: Checking a rationalised answer by decimal approximation
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Show All Working: A conjugate where the surd term comes first
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Final Revision: Checking a conjugate answer by multiplying back
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Show All Working: Showing a set is not closed by a single counter-example
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Show All Working: Simplifying an expression that mixes the index types
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Common Mistakes: An indicial equation solved by substitution
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Final Revision: Checking an indicial solution by substitution
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Show All Working: The common logarithm, to base ten
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