916 prompts matching "De Morgan's laws for sets"
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Explain Back: What a coefficient determinant of nought says about the system
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WAEC Prep: The adjoint of the identity matrix
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WAEC Prep: The order in which the cofactors are transposed
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Worked Example: The identity that A times its adjoint gives the determinant times the identity
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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 a 2 by 2 matrix as one over the determinant times the adjoint
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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: When the matrix method is worth the work for three unknowns
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WAEC Prep: The newton, and how it is defined
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Learn: Converting a weight given in kilogram-force into newtons
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WAEC Prep: Resolving before compounding several forces
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WAEC Prep: The resultant of two forces acting at the same point
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WAEC Prep: The angle the resultant makes with the larger of two forces
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WAEC Prep: Two forces acting in opposite directions
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Worked Example: The direction of the resultant of two forces
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Learn: The resultant of two perpendicular forces
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WAEC Prep: Resolving a force into horizontal and vertical components
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Learn: The component of a force along a stated direction
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WAEC Prep: The resultant of four concurrent forces
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