1,330 prompts matching "IGCSE Additional Maths Y11: The identity for one minus cos squared — Show All Wo"
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Practice: The difference of two sets, A minus B
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Explain Back: The symmetric difference of two sets
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Worked Example: Testing whether a binary operation is closed on a given set
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Practice: Testing a binary operation for associativity
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WAEC Prep: Completing a Cayley table for an operation on a small set
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Practice: Converting between index form and logarithm form
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Common Mistakes: Solving an exponential equation using logarithms
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Worked Example: The discriminant, and what each of its three cases means
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Common Mistakes: Proving that a quadratic expression is positive for every real x
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Worked Example: Finding one over alpha plus one over beta
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Practice: Finding alpha minus beta from the sum and the product
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WAEC Prep: Forming an equation whose roots are alpha over beta and beta over alpha
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Explain Back: Finding an unknown coefficient given that a stated factor divides the polynomial
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WAEC Prep: Sketching a cubic from its factorised form
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Worked Example: The sum of the products of the roots of a cubic taken two at a time
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Practice: Finding the third root of a cubic when two are known
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WAEC Prep: Finding a coefficient of a cubic given one of its roots
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Worked Example: Solving a quadratic inequality by sketching the parabola
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Practice: Solving an inequality with the unknown in the denominator
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Worked Example: The number of arrangements of n different objects in a row
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