454 prompts matching "IGCSE practice: Finding a missing angle where two lines cross"
Real-life Nigeria: What a zero determinant tells you about a system
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Teach me: Writing a pair of simultaneous equations in matrix form
You are my personal SS3 Mathematics tutor. Teach me writing a pair of simultaneous equatio
Worked example: Solving a 2 by 2 system by the matrix method
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WAEC pitfalls: Writing the coefficients out of order in the matrix
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Real-life Nigeria: Recognising a system that has no unique solution
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Teach me: The shape of a quadratic graph, and what the sign of a does to it
You are my personal SS3 Mathematics tutor. Teach me the shape of a quadratic graph, and wh
Worked example: Sketching a quadratic from its factorised form
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Real-life Nigeria: Reading the maximum or minimum value off the graph
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WAEC pitfalls: Giving a graphical answer to more accuracy than the scale allows
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Worked example: Testing the vertices of the feasible region
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WAEC pitfalls: Ignoring the non-negativity constraints
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Real-life Nigeria: A production mix problem for a small business
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Teach me: Drawing a frequency polygon from a frequency table
You are my personal SS3 Mathematics tutor. Teach me drawing a frequency polygon from a fre
Worked example: Estimating the median from a cumulative frequency curve
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WAEC pitfalls: Reading the quartiles off the wrong axis
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Teach me: Mean deviation, and what it measures
You are my personal SS3 Mathematics tutor. Teach me mean deviation, and what it measures,
Worked example: The mean deviation of an ungrouped data set
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WAEC pitfalls: Dividing by the wrong number of items
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Real-life Nigeria: Mean deviation set beside standard deviation
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Teach me: When a pie chart suits data better than a bar chart
You are my personal SS3 Mathematics tutor. Teach me when a pie chart suits data better tha