430 prompts matching "Quiz: Multiplying both sides by a positive number"
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through how long the inver
WAEC Prep: Checking the determinant before attempting a 3 by 3 inverse
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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Learn: The order of the steps in inverting a 3 by 3 matrix
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WAEC Prep: Simultaneous equations with fractional coefficients solved by matrix
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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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Worked Example: Checking the solution of three equations by substitution
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Quiz: Why mass stays the same wherever the body is taken
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Quiz: Recovering the original force from its two components
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Quiz: The magnitude of the resultant of several coplanar forces
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WAEC Prep: The forces on a body suspended by a single string
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WAEC Prep: A rigid body held in equilibrium by four forces
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Quiz: The coefficient of friction between two surfaces
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Quiz: The point about which the total moment of a set of forces vanishes
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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WAEC Prep: A knot held in equilibrium by three strings
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WAEC Prep: A lamp hanging from two wires, solved by Lami's theorem
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Learn: Finding two unknown forces by Lami's theorem
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Practice: Using a binomial expansion to approximate a number
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