658 prompts matching "Explain why a complex number times its conjugate is real"
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Worked Example: Adding or subtracting the same number on both sides
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Quiz: Multiplying both sides by a positive number
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Learn: What the modulus of a number means
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IGCSE Additional Maths Y10: Deciding whether a relation is a function — IGCSE Exam Practice
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IGCSE Additional Maths Y10: A mapping diagram, and what it shows — Common Mistakes
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IGCSE Additional Maths Y10: Why only a one-one function has an inverse — IGCSE Exam Practice
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IGCSE Additional Maths Y10: Showing that f of f inverse of x gives x back — Common Mistakes
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IGCSE Additional Maths Y10: Sketching the inverse of a quadratic with a restricted domain — Common Mistakes
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IGCSE Additional Maths Y10: The asymptotes of a function and those of its inverse — Exam Technique
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IGCSE Additional Maths Y10: Where a modulus graph meets a straight line — Common Mistakes
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IGCSE Additional Maths Y10: The range of a quadratic function — Common Mistakes
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IGCSE Additional Maths Y10: The discriminant, b squared minus 4ac — Teach Me
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IGCSE Additional Maths Y10: A line that is a tangent to a curve, and the discriminant — Common Mistakes
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IGCSE Additional Maths Y10: Using the discriminant to show an expression is never negative — Exam Technique
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IGCSE Additional Maths Y10: A quadratic inequality arising from a discriminant condition — IGCSE Exam Practice
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IGCSE Additional Maths Y10: The range of values of x that satisfies a stated condition — Common Mistakes
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IGCSE Additional Maths Y10: A quartic equation solved as a quadratic — Common Mistakes
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IGCSE Additional Maths Y10: The value of m for which y equals mx plus c is a tangent — IGCSE Exam Practice
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IGCSE Additional Maths Y10: A line meeting a circle — Common Mistakes
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IGCSE Additional Maths Y10: Writing an expression in the form a x to the power n — Common Mistakes
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