1,327 prompts matching "Learn: The formula for the sum of the first n terms of an arithmetic progression"
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Spot My Mistake: Orders that make a product possible one way round but not the other
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Quiz: The zero matrix, and how it differs from nought in arithmetic
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WAEC Prep: Evaluating 2A plus 3B for two given matrices
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Explain Back: Solving a matrix equation containing both a sum and a product
I have just studied solving a matrix equation containing both a sum and a product in my SS
WAEC Prep: Expanding a 3 by 3 determinant down a column
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Learn: Solving two simultaneous equations by Cramer's rule
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Quiz: Checking an inverse by multiplying to get the identity
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Spot My Mistake: Why the inverse must be applied on the correct side
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Quiz: Solving three simultaneous equations with the inverse matrix
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Learn: Inertia, and what mass actually measures
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Quiz: Why mass stays the same wherever the body is taken
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WAEC Prep: Resolving before compounding several forces
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Spot My Mistake: Compounding three forces acting at one point
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WAEC Prep: Two forces acting in opposite directions
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WAEC Prep: Resolving a force into horizontal and vertical components
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WAEC Prep: A table of components used to find a resultant
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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: Why friction is called a self-adjusting force
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