808 prompts matching "Index expression with three unknown letters"
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Worked Example: The discriminant, and what each of its three cases means
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Common Mistakes: Proving that a quadratic expression is positive for every real x
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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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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Show All Working: Three roots in arithmetic progression in a cubic
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Common Mistakes: Three roots in geometric progression in a cubic
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Common Mistakes: The range of values of x for which an expression stays positive
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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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Practice: The equation of a line through a point with a given gradient
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Learn: The equation of a circle with its centre at the origin
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Worked Example: The equation of a circle with a given centre and radius
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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WAEC Prep: Limiting equilibrium, with a body on the point of sliding
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Assuming a quadratic with a negative discriminant has no roots at all
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Inequality word problem with a real-life constraint
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Structured question: solve a logarithmic equation with two conditions
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Structured question: geometric progression with two given terms
I am in SS 3. Give me a structured geometric progression question where two non-consecutiv