387 prompts matching "Multiplying a complex number by a real number"
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Geometric mean between two numbers
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Sequences given by a recurrence relation
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Word problem: coordinate geometry in a real map context
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Factorising by taking out a common factor
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Factorising by grouping four terms
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Simplifying an algebraic fraction by factorising first
I am in SS 1. Teach me simplifying an algebraic fraction by factorising both the numerator
Simplifying a complex algebraic fraction
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Representing a solution set on a number line
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Solving simultaneous linear equations by substitution
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Solving simultaneous linear equations by elimination
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Learn: Telling a rational number from an irrational one
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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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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Common Mistakes: Why a rational number added to an irrational one stays irrational
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WAEC Prep: Ordering a list of surds by size
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Spot My Mistake: Dividing one surd by another
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Show All Working: Checking a rationalised answer by decimal approximation
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Common Mistakes: A surd equation that has no real solution
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Final Revision: Deciding whether a given rule really is a binary operation
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