1,325 prompts matching "Learn: Making one unknown the subject of the linear equation"
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WAEC Prep: The adjoint as the transpose of the matrix of cofactors
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WAEC Prep: The inverse of a 2 by 2 matrix with a fractional determinant
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WAEC Prep: The inverse of an inverse
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Learn: Swapping and negating the entries when inverting a 2 by 2 matrix
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: Reading the solution off the product of the inverse and the constants
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WAEC Prep: When the matrix method is worth the work for three unknowns
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WAEC Prep: The weight of a body on the moon compared with on earth
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Practice: The value of g used in Nigerian examination papers
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WAEC Prep: The resultant of two equal forces at sixty degrees
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WAEC Prep: The resultant of two forces acting at the same point
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Practice: The parallelogram law of forces
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WAEC Prep: The angle the resultant makes with the larger of two forces
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WAEC Prep: The magnitude of the resultant of two forces inclined at an angle
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WAEC Prep: Why one component vanishes when the direction is chosen well
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Quiz: Recovering the original force from its two components
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Practice: Choosing the most convenient pair of directions to resolve along
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WAEC Prep: The resultant of four concurrent forces
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Practice: The direction of the resultant of several coplanar forces
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