1,033 prompts matching "IGCSE Additional Maths Y10: Why only a one-one function has an inverse — IGCSE E"
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WAEC Prep: What the formula gives when the discriminant is negative
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Show All Working: Choosing between factorising and the formula
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Common Mistakes: A sign error in the formula, and how to catch it
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Practice: Forming an equation from a given sum and product
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WAEC Prep: Checking the sum and product against the solved roots
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Show All Working: Roots equal in magnitude but opposite in sign
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Practice: The value of alpha to the fourth plus beta to the fourth
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Show All Working: Forming an equation whose roots are three alpha and three beta
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Practice: Finding the matching value of the second unknown
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WAEC Prep: A pair that gives no real solution at all
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Show All Working: A simultaneous pair in which the second equation is a circle
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Practice: The condition for the line to be a tangent
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WAEC Prep: Finding the values of m for which a line cuts a curve twice
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Show All Working: The point of contact when a line touches a curve
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Common Mistakes: A line and a curve meeting once without the line being a tangent
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Practice: Polynomial notation such as P of x
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Show All Working: Adding and subtracting two polynomials
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Practice: A division that leaves no remainder
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WAEC Prep: Dividing by a factor of the form ax plus b
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Show All Working: Synthetic division as a shorter route
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