1,326 prompts matching "WAEC question on measures of dispersion"
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Learn: The sum of the roots of a cubic read from its coefficients
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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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Quiz: The product of the roots of a cubic
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Practice: Finding the third root of a cubic when two are known
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Learn: The meaning of n factorial, and how to evaluate it
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Worked Example: The number of arrangements of n different objects in a row
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Quiz: The number of arrangements of r objects chosen from n
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Practice: Arrangements when some of the objects are identical
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Learn: The meaning of n choose r, and how to evaluate it
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Quiz: Choosing a committee of r people from n
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Explain Back: Choosing a committee with a stated number from each of two groups
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Quiz: The compound angle formula for sine of A plus B
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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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Quiz: Solving tan x equals a given value, and the period of the tangent
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Learn: The shape, period and range of the sine curve
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Worked Example: The shape, period and range of the cosine curve
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Practice: The effect of a in y equals a sin x
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Spot My Mistake: The effect of c in y equals sin x plus c
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Quiz: The gradient of the line through two points
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