1,326 prompts matching "What the formula gives when the discriminant is negative"
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WAEC Prep: A matrix expression with brackets to expand
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Practice: Evaluating AB minus BA
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Explain Back: Solving a matrix equation containing both a sum and a product
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Quiz: Finding an unknown entry from a stated matrix equation
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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: Cramer's rule applied to a pair with fractional coefficients
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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Practice: Why a 2 by 2 matrix with determinant nought cannot be inverted
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Quiz: Checking a 3 by 3 inverse by multiplication
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WAEC Prep: Simultaneous equations with fractional coefficients solved by matrix
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WAEC Prep: Writing two simultaneous equations as a single matrix equation
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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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WAEC Prep: Resolving before compounding several forces
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WAEC Prep: Two forces acting in opposite directions
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WAEC Prep: Resolving a force into horizontal and vertical components
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WAEC Prep: A table of components used to find a resultant
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WAEC Prep: Drawing a clear force diagram for a body at rest
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WAEC Prep: A rigid body held in equilibrium by four forces
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