910 prompts matching "Expanding cos of 3 theta using de Moivre's theorem"
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Worked Example: Halving the coefficient of x and squaring it
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WAEC Prep: The minimum value of a quadratic found by completing the square
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Show All Working: Completing the square with a fractional coefficient of x
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Practice: Giving the roots correct to two decimal places
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Learn: The sum of the roots as minus b over a
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Worked Example: The product of the roots as c over a
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Common Mistakes: Roots that are reciprocals of one another
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Worked Example: The identity linking alpha squared plus beta squared to the sum and product
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Learn: Making one unknown the subject of the linear equation
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Explain Back: Writing the answers as ordered pairs
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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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Spot My Mistake: A polynomial written in descending powers
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Learn: Setting out the division of a cubic by a linear expression
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Practice: A division that leaves no remainder
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Explain Back: A division that leaves a constant remainder
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Spot My Mistake: A division that leaves a linear remainder
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WAEC Prep: Dividing by a factor of the form ax plus b
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Final Revision: Writing the result of a polynomial division out in full
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Worked Example: The remainder on dividing by x minus 3
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