1,045 prompts matching "Find the sum of the first 15 terms of an AP"
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Common Mistakes: A sign error in the formula, and how to catch it
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Worked Example: The product of the roots as c over a
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Learn: What makes an expression in the roots symmetric
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Quiz: The value of one over alpha squared plus one over beta squared
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Spot My Mistake: The value of alpha over beta plus beta over alpha
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Learn: Making one unknown the subject of the linear equation
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Show All Working: A simultaneous pair in which the second equation is a circle
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Quiz: The condition for two points of intersection
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Practice: The condition for the line to be a tangent
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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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Worked Example: The degree of a polynomial in one variable
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Common Mistakes: Multiplying one polynomial by another
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Learn: Setting out the division of a cubic by a linear expression
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WAEC Prep: Dividing by a factor of the form ax plus b
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Learn: The statement of the remainder theorem
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Show All Working: A remainder of nought, and what it means
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Learn: The statement of the factor theorem
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WAEC Prep: The factor theorem for a factor of the form ax plus b
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WAEC Prep: Factorising the difference of two cubes
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