755 prompts matching "Dividing by a factor of the form ax plus b"
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Explaining why a^1/n means the nth root of a
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Reviewing all the laws of indices before a test
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Finding n(A union B) using the formula
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Applying the sum to infinity formula when the ratio lies between minus one and one
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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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Finding where a line crosses the x-axis and y-axis
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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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Worked Example: Why the square root of a non-square whole number is irrational
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Spot My Mistake: The decimal expansion of an irrational number, and why it never repeats
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Common Mistakes: Expanding the product of two surd brackets
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Spot My Mistake: Rationalising and then cancelling a common factor
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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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Explain Back: The difference of two squares applied to surd conjugates
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Common Mistakes: Rationalising when both terms of the denominator are surds
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WAEC Prep: Equating the rational and the irrational parts of an equation
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Common Mistakes: Subtraction as an example of neither law
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Worked Example: Testing whether star distributes over plus
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