1,334 prompts matching "finding a term in an arithmetic progression"
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WAEC Prep: The difference between pre-multiplying and post-multiplying by a matrix
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Quiz: Solving AX equals B and XA equals B by different routes
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WAEC Prep: Writing the transpose of a matrix by turning rows into columns
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Explain Back: The rule that the transpose of a product reverses the order
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WAEC Prep: The identity matrix, and what it does in a product
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Worked Example: A singular matrix, and why it has no inverse
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Explain Back: The order of the answer when two matrices are multiplied
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Explain Back: Solving a matrix equation containing both a sum and a product
I have just studied solving a matrix equation containing both a sum and a product in my SS
WAEC Prep: When Cramer's rule is quicker than elimination
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Learn: Solving two simultaneous equations by Cramer's rule
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Quiz: Arranging the equations in standard form before applying Cramer's rule
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WAEC Prep: The minor of an entry of a 3 by 3 matrix
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WAEC Prep: The order in which the cofactors are transposed
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WAEC Prep: The adjoint as the transpose of the matrix of cofactors
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Explain Back: Finding the adjoint of a 2 by 2 matrix quickly
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WAEC Prep: The inverse of an inverse
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Learn: Swapping and negating the entries when inverting a 2 by 2 matrix
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Quiz: Checking an inverse by multiplying to get the identity
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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