1,483 prompts matching "IGCSE-style teach me: An exponential curve with a negative index"
WAEC pitfalls: A negative characteristic written the wrong way
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Worked example: Bringing a negative number into the right residue class
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Word problem: The cycle length of a modulus
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Practice set: The difference of two sets
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Worked example: The formula for the number in a union
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WAEC pitfalls: Counting the overlap twice in a union
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Word problem: The bi-conditional
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WAEC pitfalls: Filling a truth table column out of order
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Word problem: Recognising the type of variation from a table
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WAEC pitfalls: Treating a partial variation as a direct one
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Practice set: Factorising when that coefficient is not one
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Worked example: Solving by setting each factor to nought
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Word problem: Forming a quadratic from its given roots
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Practice set: Factoring out the leading coefficient first
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Worked example: Substituting into the quadratic formula carefully
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WAEC pitfalls: Dropping the plus-or-minus from the formula
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Worked example: Solving a related equation by adding a line to the graph
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Worked example: Rolling a sector into a cone
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Word problem: Relating the sector's arc to the cone's base circumference
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WAEC pitfalls: Using the sector radius as the cone's base radius
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