1,482 prompts matching "A triangle where the sine rule gives two possible angles (IGCSE/WAEC Revision)"
Another worked example: Describing a set by listing
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Teach me again: Why the empty set is a subset of every set
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Real-life question: The complement of a union and of an intersection
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Another worked example: Using a Venn diagram with three sets
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Teach me again: Checking the solution of a linear equation by substituting it back
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Another worked example: A pair of simultaneous equations from a word problem
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Another worked example: Factorising a quadratic whose leading coefficient is not one
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Another worked example: Choosing sensible x values for a linear table
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Teach me again: The gradient of a horizontal and of a vertical line
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Another worked example: Showing that the sum of the exterior
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Teach me again: The right-angle hypotenuse-side condition
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Another worked example: Using the equal intercept theorem to find a missing length
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Teach me again: Choosing the classes for a frequency table
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Real-life question: Finding the angle of a pie chart sector
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Another worked example: Why the mode of grouped data is only an estimate
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Teach me again: The class width and the class midpoint
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Real-life question: Estimating the median within the median class
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Another worked example: Finding an angle with the inverse tangent
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Real-life question: Why an angle of depression equals the matching angle of elevation
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Another worked example: Finding a shorter side with Pythagoras
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