arc cotangent
- noun
- /ɑrk koʊˈtænʤənt/
- Specialized
- The arc cotangent function will return the angle whose cotangent is equal to the specified number.
Examples
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Can you calculate the arc cotangent of 1?
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On the exam, you may be asked to find the arc cotangent of certain trigonometric values.
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Calculating the arc cotangent of a number is often necessary in higher-level mathematics.
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The graph of the arc cotangent function has a distinct shape compared to other inverse trigonometric functions.
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The arc cotangent function is used in trigonometry.
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To determine the angle, we need to calculate the arc cotangent of the given cotangent value.
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In advanced math, finding the arc cotangent is crucial for solving trigonometric equations.
Synonyms
An angle whose cotangent equals a given number
An angle whose cotangent is a given number
Surface Forms
Morphology
The compound uses 'arc' in the technical mathematical sense (as in arcsin, arctan) to mark the inverse of a trigonometric function, which is a conventional naming pattern in many languages; however, the everyday sense of 'arc' (a curved segment) does not by itself indicate 'inverse function'. A B1 learner who knows the literal meanings of 'arc' and 'cotangent' but lacks math-specific naming knowledge may not predict the 'inverse function' sense, so the transparency is partial.
Etymology
Arc cotangent names the angle that gives a particular cotangent. Think of a circle: the word arc points to the curved part that shows an angle, and cotangent is a number from the sides of a right triangle, so arc cotangent is the arc or angle you get for that number, which is why it means 'the angle whose cotangent is a given number'.