Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
1 Answer
Relevance
- rotchmLv 74 weeks agoFavorite Answer
cot = cos/sin.
This equals 0 when cosx = 0 . Thus x = ?
cot = undef when the sin = 0.
Still have questions? Get your answers by asking now.