1,235 prompts matching "A tautology used to justify a rule of algebra"
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Final Revision: The focus-directrix definition shared by all the conics
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Worked Example: The sign convention for clockwise and anticlockwise moments
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Final Revision: A ladder leaning against a wall, and the moments acting on it
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Worked Example: Relative velocity when two bodies move along the same line
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Final Revision: Interception, where one body must catch another
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Final Revision: The distance connected particles travel before one reaches the floor
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Worked Example: The normal reaction on a body resting on a smooth incline
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Final Revision: Showing that a given motion is simple harmonic
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Worked Example: The tension in a stretched elastic string
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Final Revision: The greatest extension reached by a falling particle on an elastic string
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Inequality word problem with a real-life constraint
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What a function is and function notation
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Evaluating a function at a given value
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Evaluating a function at a negative value
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Mapping diagrams and function types
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Composite functions fg(x)
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Composite functions gf(x)
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Verifying an inverse function is correct
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Self-inverse functions
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Multi-part function exam question
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