374 prompts matching "Simplifying indices before adding like terms"
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WAEC Prep: The determinant Dz in a system of three unknowns
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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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Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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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 a 2 by 2 matrix as one over the determinant times the adjoint
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Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: Resolving before compounding several forces
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Worked Example: Finding a particular term of a binomial expansion
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WAEC Prep: The most likely number of successes in n trials
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WAEC Prep: Adding three vectors in component form
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WAEC Prep: Adding two vectors given in component form
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WAEC Prep: Writing the square root of minus nine in terms of i
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WAEC Prep: Adding three complex numbers
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WAEC Prep: The geometric meaning of adding two complex numbers
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WAEC Prep: Adding two complex numbers
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WAEC Prep: Differentiating a sum of a polynomial and a trigonometric term
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WAEC Prep: Differentiating a polynomial term by term
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