Let's now take a look at the trig functions.
让我们现在就看在触发功能。
I would like you to know the easiest inverse trig functions, but not much.
我想让你们了解最简单的反三角函数，但不需要了解太多。
The remaining four integrals are really integrals that give the remaining four trig functions.
剩下的四个积分是真的积分，让其余四个触发功能。
That is actually not a good way to do it, because if I put sufficiently complicated trig functions in there then you might not be able to see that two terms are the same. Take an easy one.
这不是一个很好的办法，因为如果函数足够复杂，你可能就不会看出，这两项是相同的，举个简单例子。
Finally, let's take care of the inverse trig and hyperbolic functions.
最后，让我们的双曲函数反三角函数和照顾。
Finally, let's take care of the inverse trig and hyperbolic functions.
最后，让我们的双曲函数反三角函数和照顾。
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