755 prompts matching "When the matrix method is worth the work for three unknowns"
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Worked Example: The law for the logarithm of a quotient
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Worked Example: The alternative sum formula that uses the last term
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Common Mistakes: Proving the sum formula by pairing the terms
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Final Revision: Proving the sum formula for a geometric progression
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Learn: Factorising a quadratic before solving the inequality
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Explain Back: The solution when the quadratic expression is greater than nought
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IGCSE Additional Maths Y10: The line y equals x as the mirror for an inverse — Worked Example
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IGCSE Additional Maths Y10: Two distinct roots, and what the discriminant shows — Worked Example
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IGCSE Additional Maths Y10: The condition for a line to miss a curve entirely — Practice Set
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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: Writing an expression in the form a x to the power n — Common Mistakes
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IGCSE Additional Maths Y10: Expressing a surd answer in the form the question demands — Common Mistakes
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IGCSE Additional Maths Y10: Testing whether x minus 2 is a factor of a cubic — Worked Example
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IGCSE Additional Maths Y10: Reading the intercept off a linear-form graph — Common Mistakes
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IGCSE Additional Maths Y10: The effect of a transformation on the coordinates of a point — Common Mistakes
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Deriving the geometric series sum formula
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Disjoint sets and what they mean
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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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Common mistakes in coordinate geometry formulas
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