１次関数がキライなＫｉｄｓの関数遊びは続く。６月の長雨で遊べないのである。私塾の老先生も畑に出れなくて困っていて、ついついＫｉｄｓとＭａｔｈの話になる。
math.msu.edu/diagnostic_exam/diagnostic/indexse115
Ｇｒａｐｅｓですぐ確認
quora.com/How-can-sin-x-tan-x-+-cos-x-be-simplified
Philip Lloyd, Specialist Calculus Teacher, Motivator and Trumpet Soloist
Initially I misread this question as sinx.tanx + cosxand the simplification is outlined nicely below....
In most cases of trigonometric simplification, it is best to change everything into sin(x) and cos(x).
Do not mess about with tan(x), cot(x), sec(x) or cosec(x)
If you tell your students never to mess about with secs, you always get a laugh and they remember it too!
chegg.com/homework-help/questions-and-answers/1-evaluate-following-limits-lim-x-tends-pi-2-tan-x-cos-x-b-lim-x-tends-0-1-x-1-x-2-ln-1-3x-q6267899