1,326 prompts matching "IGCSE Additional Maths Y11: The notation used for a definite integral — Worked E"
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WAEC Prep: Evaluating 2A plus 3B for two given matrices
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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Practice: The sign pattern of the cofactors in a 3 by 3 determinant
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Practice: Turning a minor into a cofactor with the sign rule
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Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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Spot My Mistake: Finding the adjoint of a 3 by 3 matrix
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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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Practice: What a singular coefficient matrix says about the equations
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Quiz: Solving three simultaneous equations with the inverse matrix
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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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Practice: Choosing the most convenient pair of directions to resolve along
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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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WAEC Prep: Drawing a clear force diagram for a body at rest
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