757 prompts matching "IGCSE Maths Y10: A scale factor problem set on a map — Exam Technique"
WAEC pitfalls: Dropping the negative sign when reversing a vector
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Worked example: Proving three points are collinear with vectors
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Worked example: Finding the mirror line from an object and its image
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WAEC pitfalls: Reflecting in y equals x by negating instead of swapping
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Worked example: Finding the centre of enlargement from object and image
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Worked example: Multiplying a 2 by 3 matrix by a 3 by 2 matrix
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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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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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WAEC pitfalls: Joining the plotted points of a curve with straight lines
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Worked example: Solving a quadratic graphically by adding a straight line
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Worked example: Estimating the median from a cumulative frequency curve
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Worked example: Reading a quantity from a pie chart given the total
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WAEC pitfalls: Comparing two pie charts of different totals directly
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Worked example: Rounding a number whose leading digits are zeros
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WAEC pitfalls: Dropping trailing zeros that are in fact significant
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WAEC pitfalls: Giving a percentage error as a negative quantity
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Worked example: Compound interest worked year by year and then by formula
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WAEC pitfalls: Using the rate as a whole number instead of a decimal
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