1,320 prompts matching "Factorising the sum of two cubes"
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Explain Back: Solving a matrix equation containing both a sum and a product
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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Learn: Solving two simultaneous equations by Cramer's rule
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WAEC Prep: Writing two simultaneous equations as a single matrix equation
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WAEC Prep: Two forces acting in opposite directions
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WAEC Prep: A table of components used to find a resultant
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Explain Back: Showing that a system of concurrent forces is in equilibrium
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Learn: What an unclosed polygon of forces tells you
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WAEC Prep: Using concurrence to locate an unknown line of action
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Practice: Resolving three forces in two perpendicular directions
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Explain Back: A particle hanging from two strings set at different angles
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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Worked Example: Finding a particular term of a binomial expansion
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WAEC Prep: A Poisson distribution taken over a different length of interval
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WAEC Prep: Comparing two values from different normal distributions by z-score
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WAEC Prep: Two vectors that are equal but drawn in different places
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WAEC Prep: Writing a two-dimensional vector in i and j form
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Quiz: Writing a two-dimensional vector as a column
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: Using a unit vector to write a force of given size
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