TrigonometricIdentities(Revision:1.4)TrigonometricIdentitiesyoumustrememberThe“bigthree”trigonometricidentitiesare\(\large\begin{equation}\sin^{2}t+cos^{2}t=1\tag{1}\end{equation}\)\(\large\begin{equation}\sin(

大学里老师都默认我们学过正割\(\sec\)，余割\(\csc\)与余切\(\cot\)再加上高中的一些公式都有点遗忘，开个贴做个笔记常规的\(\sinx,\cosx,\tanx\)以及之间的关

TrigonometricseriesFromWikipedia,thefreeencyclopediaJumpto:​​navigation​​​,​​​search​​In​​mathematics​​,atrigonometricser

Trigonometricfunctions标签（空格分隔）：三角函数Unitright-angletriangle{#1}\(\sin\theta=\frac{opposite\quadside}{hypotenuse}\)\(\cos\theta=\frac{adjacent