1,076 prompts matching "IGCSE Additional Maths Y10: Checking a polynomial division by multiplying back —"
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Common Mistakes: Adding, subtracting and multiplying two polynomials
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Final Revision: The zeros of a polynomial and where its graph cuts the x-axis
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Final Revision: Checking that the roots found satisfy the original equation
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Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
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Worked Example: Solving a quadratic inequality by sketching the parabola
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Final Revision: Proving an identity by working on one side only
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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WAEC Prep: Solving an equation by first applying a double angle formula
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Show All Working: Solving a cos x plus b sin x equals c by the R method
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Final Revision: Losing solutions by dividing through by cos x
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Spot My Mistake: The general form ax plus by plus c equals nought
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Final Revision: The focus-directrix definition shared by all the conics
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Show All Working: Replacing two parallel forces by a single resultant
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Learn: Two particles joined by a light inextensible string over a smooth pulley
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Final Revision: The greatest extension reached by a falling particle on an elastic string
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Spot my mistake: Negating the leading diagonal and swapping the other two entries when inverting a 2 by 2 matrix
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Spot my mistake: Assuming multiplying a vector by a negative scalar leaves its magnitude negative
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Spot my mistake: Differentiating a product by multiplying the derivatives of its two factors
Act as my SS3 Further Mathematics tutor. Write a short answer on differentiating a product
Timed 20-minute Further Maths exam practice
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Structured question: two compound statements compared row by row
I am in SS 3. Give me a structured question where I must build truth tables for two differ