755 prompts matching "The half angle formulae and the t-substitution"
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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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Finding an endpoint given the midpoint
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Equation of a line given gradient and one point
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Finding the point of intersection of two lines
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Equation of the perpendicular bisector of a segment
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Vertical and horizontal line equations
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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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Finding an unknown coordinate using the gradient formula
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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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Quiz me rapid-fire on gradients and equations of lines
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Coordinate geometry involving a right-angle condition to find x
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Full worked exam-style problem combining gradient, distance and midpoint
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Expanding a product of two brackets
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