1,334 prompts matching "Use the quadratic formula on 3x^2 + 5x + 1 = 0"
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WAEC Prep: Expanding a 3 by 3 determinant down a column
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Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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WAEC Prep: A three-unknown system arising from a word problem
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WAEC Prep: Mass, and how it differs from weight
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WAEC Prep: Resolving before compounding several forces
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WAEC Prep: Drawing a clear force diagram for a body at rest
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WAEC Prep: A rigid body held in equilibrium by four forces
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WAEC Prep: Calculating a moment as force times perpendicular distance
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WAEC Prep: A knot held in equilibrium by three strings
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Explain Back: A particle hanging from two strings set at different angles
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Explain Back: Finding n and p from a given mean and variance
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Worked Example: Finding a value from a given probability by working backwards
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WAEC Prep: Two vectors that are equal but drawn in different places
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Spot My Mistake: Drawing a vector as a directed line segment
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WAEC Prep: Using a unit vector to write a force of given size
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WAEC Prep: A unit vector, and what makes it a unit
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Worked Example: Testing two vectors for perpendicularity
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WAEC Prep: Three forces in equilibrium written as vectors
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WAEC Prep: Writing a force as a vector in i and j form
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WAEC Prep: Adding three complex numbers
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