The third week1

I the third week, I learned more about in Math. Our lessons in Math is about the six trigonometric function. In first lesson, it was not too hard for us to learn, because it is only the basic of trigonometry. But later on, we found it hard when it comes to proving the identities. If you don't know how to get the first step, you can't get the answer or you can't prove it. In trigonometry, you must pay attention to your teacher, because if you do not, you will not know the next lessons. Because as i said, if you don't know how to begin, you don't know what next. That is the life in Math.