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- Thread starter chiuda
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tiny-tim

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for

(and cos

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Related acute angle sorry. If cos is neg then it must be in quadrant 3 or 4.

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Right?

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Mark44

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The restricted domain for the cosine function (sometimes written as Cos) is, as tiny-tim said, [0, ## \pi##]. This is the range of the inverse cosine function (cosRelated acute angle sorry. If cos is neg then it must be in quadrant 3 or 4.

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