1,331 prompts matching "Converting an answer back out of index form"
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Worked Example: The sum of the products of the roots of a cubic taken two at a time
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Practice: Finding the third root of a cubic when two are known
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Spot My Mistake: The relations between roots and coefficients for a quartic
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Spot My Mistake: Arrangements in which two particular objects must be kept apart
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Common Mistakes: Arrangements restricted at the first or the last place
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Common Mistakes: Selections in which at least one of a kind must appear
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Final Revision: Combinations used with the addition and multiplication principles
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Final Revision: Proving an identity by working on one side only
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Explain Back: Solving a quadratic in sin x
I have just studied solving a quadratic in sin x in my SS3 Further Mathematics class. Let
Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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Common Mistakes: Giving the general solution of a trigonometric equation
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Quiz: The tangent curve and its asymptotes
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Practice: The effect of a in y equals a sin x
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Worked Example: The midpoint formula applied to a given segment
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Practice: The equation of a line through a point with a given gradient
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Common Mistakes: The angle between two lines found from their gradients
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Final Revision: The perpendicular distance from a point to a line
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Learn: The equation of a circle with its centre at the origin
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Quiz: Finding the centre and the radius from the general equation
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Practice: The equation of a circle on a given diameter
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