1,333 prompts matching "Checking an inverse by working the operation both ways"
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Spot My Mistake: Orders that make a product possible one way round but not the other
Act as my SS3 Further Mathematics tutor. Work a question on orders that make a product pos
Spot My Mistake: A symmetric matrix, equal to its own transpose
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WAEC Prep: The identity matrix of order three
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WAEC Prep: The order of a matrix formed from a table of data
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WAEC Prep: A matrix expression with brackets to expand
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Quiz: Finding an unknown entry from a stated matrix equation
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WAEC Prep: When Cramer's rule is quicker than elimination
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WAEC Prep: What Cramer's rule gives when the system is inconsistent
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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WAEC Prep: The cofactor of a corner entry
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WAEC Prep: Why the cofactor signs alternate
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WAEC Prep: The adjoint of the identity matrix
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WAEC Prep: Writing two simultaneous equations as a single matrix equation
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WAEC Prep: When the matrix method is worth the work for three unknowns
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WAEC Prep: Writing three simultaneous equations as a single matrix equation
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WAEC Prep: Mass, and how it differs from weight
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Quiz: Why mass stays the same wherever the body is taken
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WAEC Prep: The weight of a body on the moon compared with on earth
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Worked Example: The weight of a body as mass times g
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WAEC Prep: The component of a force at thirty degrees to the horizontal
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