1,278 prompts matching "Find sum and product of roots of x^2 + 4x - 12 = 0"
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Explain Back: Finding an unknown coefficient given that a stated factor divides the polynomial
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Explain Back: Forming a cubic equation whose three roots are given
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Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
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Worked Example: The number of arrangements of n different objects in a row
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Worked Example: The difference between a permutation and a combination
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Explain Back: Choosing a committee with a stated number from each of two groups
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WAEC Prep: Pascal's triangle and the combination numbers in it
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Worked Example: The identities for one plus tan squared and one plus cot squared
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Explain Back: The compound angle formula for tan of A plus B
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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Quiz: The tangent curve and its asymptotes
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Explain Back: The effect of b in y equals sin bx on the period
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Explain Back: The equation of the line through two given points
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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Worked Example: The parametric form of a point on a parabola
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Practice: The ellipse in standard form, and its two axes
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Explain Back: The eccentricity of an ellipse
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WAEC Prep: The hyperbola in standard form, and its asymptotes
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Worked Example: The interquartile range of a set of ordered data
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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