1,334 prompts matching "Teach me writing the sum and product of the roots from the coefficients"
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WAEC Prep: The commutative law for matrix addition
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Quiz: The zero matrix as the identity for matrix addition
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WAEC Prep: Subtracting one 2 by 2 matrix from another
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WAEC Prep: Raising a 2 by 2 matrix to the third power
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Explain Back: Showing that AB and BA are usually different for 2 by 2 matrices
I have just studied showing that AB and BA are usually different for 2 by 2 matrices in my
WAEC Prep: Multiplying a 3 by 3 matrix by the identity matrix
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Worked Example: Taking a common factor out of a matrix
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Quiz: Solving AX equals B and XA equals B by different routes
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Spot My Mistake: A symmetric matrix, equal to its own transpose
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WAEC Prep: A skew-symmetric matrix
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Worked Example: A singular matrix, and why it has no inverse
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WAEC Prep: A matrix expression with brackets to expand
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WAEC Prep: Expanding a 3 by 3 determinant down a column
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Quiz: Expanding a 3 by 3 determinant along a row or column containing noughts
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WAEC Prep: When Cramer's rule is quicker than elimination
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WAEC Prep: Cramer's rule applied to a pair with fractional coefficients
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WAEC Prep: Setting out the coefficient determinant for two simultaneous equations
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Spot My Mistake: Forming the determinant Dx by replacing the first column
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Spot My Mistake: Checking a Cramer's rule solution by substituting back
Act as my SS3 Further Mathematics tutor. Work a question on checking a Cramer's rule solut