755 prompts matching "The minor of an entry of a 3 by 3 matrix"
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Coordinate geometry proof: right-angled triangle
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Coordinate geometry proof: isosceles triangle
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Gradient as a rate of change interpretation
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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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Expanding a product of two brackets
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Expanding a product of three brackets
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Factorising the difference of two squares
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Simplifying an algebraic fraction by factorising first
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Solving a linear inequality and showing the solution
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Changing the subject with a square or square root
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Algebraic long division of a simple polynomial by a linear factor
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Explaining the difference between an expression and an equation
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Worked Example: Why the square root of a non-square whole number is irrational
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Quiz: Rationalising a denominator of the form one over root 3
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Final Revision: Expressing a rationalised answer in the form a root b over c
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Learn: The conjugate of a compound surd expression
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Worked Example: Why multiplying by the conjugate clears the surd
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Quiz: Rationalising a denominator of the form one over 2 plus root 3
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