755 prompts matching "What the formula gives when the discriminant is negative"
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Common student mistakes with progression formulas
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Equation of the perpendicular bisector of a segment
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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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Show All Working: Finding a and b when a plus b root 2 equals a given surd
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Final Revision: Why brackets matter when an operation is not associative
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Learn: The change of base formula
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Learn: The formula for the sum of the first n terms of an arithmetic progression
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Learn: The formula for the sum of the first n terms of a geometric progression
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Rationalising using the conjugate
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Surds in the quadratic formula
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Rationalising and then simplifying fully
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Finding n(A union B) using the formula
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Deriving the arithmetic series sum formula
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Finding the first term or common difference from the sum formula
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Finding an endpoint given the midpoint
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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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Explaining gradient, midpoint and distance formulas in my own words
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Distinguishing gradient sign: positive, negative, zero, undefined
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Common mistakes in coordinate geometry formulas
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