Help with math homework. Trigonometric identities.?
回答 (5)
You did not give an identity!!
Do you mean (csc²(x)-1)/(csc(x)-1) ? Equals what?
(csc^2(x) - 1)/(csc (x) - 1)
= (csc (x) + 1)
But what is the question ?
you need to use parans, there are many ways to interpret this.
收錄日期: 2021-05-01 20:55:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180103203124AA0tA6B
檢視 Wayback Machine 備份