739 prompts matching "The distance formula (IGCSE/WAEC Revision)"
WAEC pitfalls: Assuming matrix multiplication is commutative
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Real-life Nigeria: The identity matrix, and what it does
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Teach me: The determinant of a 2 by 2 matrix
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Quiz me: Calculating a determinant from the four entries
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Spot my mistake: Forgetting to swap the leading diagonal when inverting
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Worked example: Verifying an inverse by multiplying back to the identity
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WAEC pitfalls: Dividing by a determinant of zero
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Practice set: Finding the inverse of a given 2 by 2 matrix
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Quiz me: Identifying the coefficient matrix and the constant matrix
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Explain back: Solving by multiplying through by the inverse matrix
I have just studied solving by multiplying through by the inverse matrix in my SS3 Mathema
Spot my mistake: Multiplying by the inverse on the wrong side
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Worked example: Solving a 2 by 2 system by the matrix method
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Teach me: The shape of a quadratic graph, and what the sign of a does to it
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Explain back: The line of symmetry and the turning point
I have just studied the line of symmetry and the turning point in my SS3 Mathematics class
Spot my mistake: Plotting a point from the wrong row of the table
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Word problem: The path of a thrown object modelled by a quadratic
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Practice set: Finding the roots from where the curve cuts the x-axis
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Real-life Nigeria: Reading the maximum or minimum value off the graph
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Spot my mistake: Reading the intersection off the wrong axis
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Explain back: Shading the feasible region on a graph
I have just studied shading the feasible region on a graph in my SS3 Mathematics class. Le