1,329 prompts matching "What an inverse element is"
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Common Mistakes: A binary operation defined by arithmetic modulo n
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Practice: Rationalising a denominator of the form root a
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Explain Back: Rationalising a denominator of the form a plus root b using the conjugate
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Final Revision: Proving that root 2 is irrational
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Explain Back: The laws of logarithms for a product and for a quotient
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WAEC Prep: The change of base formula for logarithms
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Show All Working: Solving a logarithmic equation and rejecting the invalid root
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Explain Back: The range of values of k for which the roots are real
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WAEC Prep: Forming an equation whose roots are each two more than the original
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Common Mistakes: Proving that a quadratic expression is positive for every real x
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Final Revision: Solving a disguised quadratic by substitution
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WAEC Prep: Forming an equation whose roots are alpha over beta and beta over alpha
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Practice: Factorising a cubic completely once one factor is known
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Explain Back: Finding an unknown coefficient given that a stated factor divides the polynomial
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Spot My Mistake: The factor theorem for a divisor of the form ax minus b
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WAEC Prep: Sketching a cubic from its factorised form
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Show All Working: Solving a cubic equation by factorisation
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Common Mistakes: Three roots in geometric progression in a cubic
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Final Revision: Checking that the roots found satisfy the original equation
Act as my WAEC Further Mathematics coach in the last week before the paper. I am in SS 3.