1,268 prompts matching "IGCSE practice: Picking three x values for a straight line"
Worked example: An indicial equation solved with logarithms
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Nigerian scenario: Indicial equations in a described Nigerian investment
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Exam timing: A timed set of indicial equations
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Teach me: Naming the opposite, adjacent and hypotenuse
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Quiz me: The sine, cosine and tangent ratios
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Spot my mistake: Finding an angle with an inverse ratio
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Worked example: A two-step problem needing two ratios
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Nigerian scenario: Measuring a height by trigonometry in a Nigerian setting
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Exam timing: A timed set of right-angled triangle questions
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Spot my mistake: The sign of each ratio in the four quadrants
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Nigerian scenario: Special angles in a described construction problem
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Exam timing: A timed set of special angle questions
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Teach me: The shape and period of the sine and cosine curves
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Quiz me: The shape of the tangent curve and its asymptotes
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Spot my mistake: The angle of depression and its relation to elevation
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Worked example: Finding the height of a mast from its angle of elevation
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Nigerian scenario: Sighting a building or mast in a Nigerian town
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Exam timing: A timed set of elevation and depression questions
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Teach me: A logarithm as the index a base must be raised to
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Worked example: Using the power law to simplify a logarithmic expression
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