755 prompts matching "Why the cofactor signs alternate"
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Explaining why a^1/n means the nth root of a
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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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Learn: Why a surd is never left in the denominator
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Worked Example: Why multiplying by the conjugate clears the surd
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Final Revision: Why closure is checked before any other property
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Final Revision: Why distributivity links two operations rather than one
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Common Mistakes: Why the index laws need the bases to match
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Learn: Why any non-zero number to the power nought is one
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WAEC Prep: Why the logarithm of a negative number does not exist
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Practice: Reversing the sign when multiplying by a negative number
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IGCSE Additional Maths Y10: Why the graph of an inverse is a reflection — Explain It Back
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IGCSE Additional Maths Y10: Why a modulus graph never dips below the x-axis — Exam Technique
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Surds in the quadratic formula
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Explaining why we rationalise denominators
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Explaining why sum to infinity only works for |r| < 1
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Distinguishing gradient sign: positive, negative, zero, undefined
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Common sign errors in algebraic manipulation
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Common Mistakes: Why a rational number added to an irrational one stays irrational
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Explain Back: Why 2 root 3 and 5 root 3 count as similar surds
I have just studied why 2 root 3 and 5 root 3 count as similar surds in my SS1 Further Mat