why doesn't cos^-1(1.83/1.2) work?

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Guest May 5, 2014

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The cosine only returns values from -1 to 1, inclusive......Since (1.83 / 1.2) > 1, this isn't defined for the cosine function.

CPhill May 5, 2014

CPhill · Answer 1 · 2014-05-05T01:15:29

The cosine only returns values from -1 to 1, inclusive......Since (1.83 / 1.2) > 1, this isn't defined for the cosine function.