1,334 prompts matching "Halving the coefficient of x and squaring it"
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Practice: Arrangements when some of the objects are identical
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Show All Working: Arrangements of the letters of a given word
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Explain Back: Choosing a committee with a stated number from each of two groups
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Spot My Mistake: The identity that n choose r equals n choose n minus r
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Show All Working: Counting the handshakes, or the lines joining n points
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Learn: The Pythagorean identity, sin squared plus cos squared equals one
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Practice: The compound angle formula for cosine of A minus B
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Explain Back: The compound angle formula for tan of A plus B
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Practice: Solving an equation of the form sin of 2x equals a given value
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Practice: The effect of a in y equals a sin x
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Explain Back: The effect of b in y equals sin bx on the period
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Show All Working: Reading the solutions of a trigonometric equation off a graph
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Explain Back: The equation of the line through two given points
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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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Explain Back: The variance of an ungrouped set of data
I have just studied the variance of an ungrouped set of data in my SS3 Further Mathematics
Explain Back: Finding the reaction at each support of a loaded beam
I have just studied finding the reaction at each support of a loaded beam in my SS3 Furthe
Spot My Mistake: The point at which a loaded beam will tip about its support
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Quiz: Relative velocity when the two motions are at right angles
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
Act as my SS3 Further Mathematics tutor. Work a question on an aeroplane in a cross-wind,