1,331 prompts matching "Finding the values of c for which a line is a tangent"
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WAEC Prep: Post-multiplying a row vector 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: A skew-symmetric matrix
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Practice: A diagonal matrix
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Worked Example: A singular matrix, and why it has no inverse
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WAEC Prep: Evaluating A squared minus 2A
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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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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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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: A body just about to slide on a horizontal surface
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WAEC Prep: A knot held in equilibrium by three strings
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Practice: Using a binomial expansion to approximate a number
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