775 prompts matching "Checking a conjugate answer by multiplying back"
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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 an inverse
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WAEC Prep: Reading the solution off the product of the inverse and the constants
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WAEC Prep: Writing two simultaneous equations as a single matrix equation
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Spot My Mistake: Why the inverse must be applied on the correct side
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WAEC Prep: A three-unknown system arising from a word problem
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WAEC Prep: When the matrix method is worth the work for three unknowns
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WAEC Prep: Writing three simultaneous equations as a single matrix equation
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Quiz: Solving three simultaneous equations with the inverse matrix
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WAEC Prep: A particle, and what the word assumes
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WAEC Prep: A rigid body, and what the word assumes
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WAEC Prep: Mass, and how it differs from weight
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Quiz: Why mass stays the same wherever the body is taken
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WAEC Prep: The difference between a kilogram and a kilogram weight
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WAEC Prep: The weight of a body on the moon compared with on earth
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WAEC Prep: The newton, and how it is defined
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WAEC Prep: The resultant of two equal forces at sixty degrees
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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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Spot My Mistake: Compounding three forces acting at one point
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