916 prompts matching "De Morgan's laws for sets"
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WAEC Prep: The number of elements in the union of two sets
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Explain Back: Finding the identity element of a binary operation
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WAEC Prep: Completing a Cayley table for an operation on a small set
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Common Mistakes: A binary operation defined by arithmetic modulo n
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Show All Working: Expressing a number in the form a root b
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Common Mistakes: Solving an equation in which the unknown sits under a root
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Worked Example: Simplifying an expression carrying both a negative and a fractional index
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WAEC Prep: The change of base formula for logarithms
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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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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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Common Mistakes: The range of values of x for which an expression stays positive
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WAEC Prep: The three forms of the double angle formula for cosine
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Show All Working: The half angle formulae and the t-substitution
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Common Mistakes: Expressing a cos x plus b sin x in the form R cos of x minus alpha
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WAEC Prep: Solving an equation by first applying a double angle formula
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Worked Example: The midpoint formula applied to a given segment
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Explain Back: Deciding whether a point lies inside, on or outside a circle
I have just studied deciding whether a point lies inside, on or outside a circle in my SS3