1,396 prompts matching "IGCSE-Style Question: A histogram with unequal class widths"
WAEC pitfalls: Labelling the sides relative to the wrong angle
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Practice set: The ratios at nought and 90 degrees
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Worked example: The reference angle for an angle beyond 90 degrees
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WAEC pitfalls: Quoting a special angle ratio as a decimal when an exact value is asked for
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Practice set: Reading a value off a trigonometric graph
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Worked example: Finding the height of a mast from its angle of elevation
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WAEC pitfalls: Taking the angle from the vertical instead of the horizontal
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Practice set: The logarithm of one, and of the base itself
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Worked example: Using the power law to simplify a logarithmic expression
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WAEC pitfalls: Treating the logarithm of a sum as the sum of logarithms
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Practice set: Using antilogarithms to return to the number
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Worked example: The shape of a logarithmic graph
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WAEC pitfalls: A negative characteristic written the wrong way
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Exam timing: A timed set of logarithm calculations
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Practice set: Adding and subtracting in modular arithmetic
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WAEC pitfalls: Reducing to a residue outside the permitted range
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Practice set: The empty set and the universal set
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Worked example: The number of elements in a set
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Practice set: The difference of two sets
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Worked example: The formula for the number in a union
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