Chapter 252 (2/2)

The formula for this topic is a little more complicated.

But for Cheng Nuo, it is only the calculation formula complexity.

In less than two minutes, Cheng Nuo had written his last stroke.

“l=lim…… =0.5。”

Ignoring the surprised eyes of two people nearby, Cheng Nuo directly calculated the fifth question.

It's still about the limit.

However, it is very complicated to find the limit formula. We can't solve the problem with Lagrange's mean value theorem, lophida's rule, pinch theorem, Taylor's formula and so on.

In addition, Cheng Nuo combined Cauchy convergence theorem with Stolz Theorem.

“limf(x)x^n+1=limf(x+h)-f(x)(x+h)^n+1-x^n+1……”

After more than ten formulas, Cheng solved the problem easily.

”Do you understand?” Cheng Nuo doesn't look up. He puts on his pen cap and asks them at the same time.

”There are still a few formulas left to be understood.” Li Peng told the truth.

”Here, here. Take it back to the dorm and have a look.” Tear, Cheng Nuo will be the draft of the page torn off, put into Li Peng's hand.

Li Peng and Zhao Yang got up and said, ”thank you, Cheng Nuo. Li Peng and I will go first.”

Cheng Nuo waved his hand. ”No, thank you. It's right for you to help each other.”

Zhao Yang nodded, ”then Cheng Nuo, if you have any trouble in the future, we will try our best to help.”

Cheng Nuo smiles, ”that feeling is good.”

After mutual politeness, Cheng Nuo watched Zhao Yang leave the dormitory.

As soon as the door of the dormitory is closed, Cheng Nuo quickly lies on the computer desk and shouts to the other three people in the dormitory, ”hurry, while there is still time, let's open another round. In this game, I don't believe we can't eat chicken yet

…………

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