424 prompts matching "Checking whether a triangle is right-angled"
WAEC pitfalls: Ignoring an area that lies below the axis
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Spot my mistake: Adding vectors by adding their magnitudes
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Word problem: A displacement problem solved with vectors
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Spot my mistake: Subtracting the position vectors in the wrong order
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WAEC pitfalls: Confusing a position vector with a displacement vector
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Real-life Nigeria: The centroid of a triangle found from its vertices
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Spot my mistake: Adding the column vector to the wrong coordinate
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Quiz me: Reflecting a point in the x-axis and in the y-axis
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Practice set: Reflecting a shape in a line parallel to an axis
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WAEC pitfalls: Assuming a positive angle of rotation means clockwise
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Spot my mistake: Measuring the scale factor from the wrong centre
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Spot my mistake: Multiplying matrices whose orders do not match
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WAEC pitfalls: Assuming matrix multiplication is commutative
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Spot my mistake: Forgetting to swap the leading diagonal when inverting
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Spot my mistake: Multiplying by the inverse on the wrong side
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Real-life Nigeria: Recognising a system that has no unique solution
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Spot my mistake: Plotting a point from the wrong row of the table
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Worked example: Sketching a quadratic from its factorised form
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Practice set: Finding the roots from where the curve cuts the x-axis
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Teach me: What linear programming sets out to optimise
You are my personal SS3 Mathematics tutor. Teach me what linear programming sets out to op