755 prompts matching "Learn: The order of the steps in inverting a 3 by 3 matrix"
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Multiplying two surds together
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Rationalising using the conjugate
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Surds arising from Pythagoras' theorem
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Surds in the quadratic formula
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Listing elements of a set from a description
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Union and intersection of two number sets
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Complement of a set within a universal set
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Reviewing set theory before a class test
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Finding the common difference from given terms
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Sum of the first n terms of an arithmetic series
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Finding the common ratio from given terms
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Sum of the first n terms of a geometric series
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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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Sum of the first n odd numbers
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Finding an endpoint given the midpoint
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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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Equation of the perpendicular bisector of a segment
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Area of a triangle from three coordinates
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