1,101 prompts matching "Coordinate geometry applied to a triangle's area check"
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WAEC Prep: What Cramer's rule gives when the system is inconsistent
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through what Cramer's rule
Explain Back: What a coefficient determinant of nought says about the system
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Quiz: Arranging the equations in standard form before applying Cramer's rule
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WAEC Prep: The adjoint of the identity matrix
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Explain Back: Finding the adjoint of a 2 by 2 matrix quickly
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Spot My Mistake: Finding the adjoint of a 3 by 3 matrix
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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 an inverse
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Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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Explain Back: The inverse of a diagonal matrix
I have just studied the inverse of a diagonal matrix in my SS3 Further Mathematics class.
WAEC Prep: Simultaneous equations with fractional coefficients solved by matrix
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WAEC Prep: Reading the solution off the product of the inverse and the constants
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Explain Back: Solving two simultaneous equations by multiplying by the inverse
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Practice: What a singular coefficient matrix says about the equations
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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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Quiz: Solving three simultaneous equations with the inverse matrix
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Practice: Comparing the inverse method with elimination for three equations
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WAEC Prep: A particle, and what the word assumes
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through a particle, and wh