755 prompts matching "Negating the leading diagonal and swapping the other two entries when inverting"
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Deciding whether a geometric series converges
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Finding a term given the sum of a series
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Mixed sequence exam question, arithmetic and geometric
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Deriving the arithmetic series sum formula
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Deriving the geometric series sum formula
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Finding the first term or common difference from the sum formula
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Comparing arithmetic and geometric growth over time
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Sum of the first n odd numbers
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Reviewing every sequence and series formula before a test
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Equation of a line given gradient and one point
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Finding the equation of a line parallel to the x-axis or y-axis through a point
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Distance from a point to the centre of a circle
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Equation of a line with a given y-intercept and passing through a point
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Explaining gradient, midpoint and distance formulas in my own words
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Finding the equation of a median of a triangle
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Full worked exam-style problem combining gradient, distance and midpoint
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Expanding a product of three brackets
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Expanding and simplifying with negative brackets
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Changing the subject of a simple formula
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Changing the subject when the variable appears twice
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