Song Nan comforted the angry Song Beizheng with his eyes.
After all, this is outside, and the second brother still has the image of a cold and arrogant movie star who is a flower of high mountain. He can't let it collapse because of a small thing.
The person who solved the problem was the director's nephew Xi Xing, who was studying for a doctorate at Yenching University. When he heard that his uncle was going to give a more difficult question as a level for the variety show, Xi Xing, who had nothing to do at home, volunteered to give the question.
Xi Xing was staying at home anyway, so he asked the director to come join in the fun and see what those glamorous stars were like in private.
When Xi Xing heard that there was a problem with his answer, he was so furious!
How dare a showbiz actor doubt a top student like him? ! !
Egg hitting stone?!
Xi Xing wanted to laugh, laughing at the star who would do anything to get out. He guessed he would be in trouble if he met him this time.
However, Xi Xing did not show it on his face. After all, it was his uncle's crew, so he had to give his uncle some face.
Xi Xing walked up to the group and looked at them condescendingly.
He said indifferently: "Who said there's something wrong with my answer? I wrote the answer, so tell me about it!"
Of course, when saying these words, Xi Xing did not look at Song Nan.
He felt that Song Nan was just a soft little girl, how could she be the same as those stars in the entertainment industry?
Looking at the fair and tender little girl with a pure appearance, how could she be like a star who would do anything to climb to the top?
It was obvious at first glance that the little girl was tricked by her uncle into coming here to boost his popularity.
So Xi Xing naturally ignored the little girl.
But what Xi Xing didn't expect was that when he asked again who had doubts about his answer, Song Nan stood up.
Xi Xing's eyes widened: "Miss, don't say anything, do you have any doubts about my answer?"
Song Nan nodded steadily and looked at Xi Xing, wondering why he asked that.
Xi Xing looked at the soft little girl and couldn't bear to treat her like other people.
He knew his answer was correct, but if it got out, the little girl would definitely be attacked by the crazy people on the Internet.
Looking at such an innocent little girl, he really couldn't bear to let her suffer those things.
He kindly advised the little girl: "You probably don't know, I'm a doctoral student at Yenching University..."
The implication is that my answer will not be wrong...
But she seemed not to understand and stared at Xi Xing's eyes stubbornly: "Thank you, I know."
Xi Xing was a little annoyed, feeling that all his good intentions had been abandoned.
In a fit of anger, Xi Xing no longer cared about Song Nan and let her fend for herself.
"Then tell me, where did I go wrong!" Xi Xing said in a choked voice.
Song Nan didn't care about Xi Xing's change of attitude. He pointed to a part of the question in a soft voice: "Look, are you using the Leibniz formula here? If you look more closely, you will find that on the surface, it is possible to use the Leibniz formula, but the Leibniz formula has a small limitation. Under that limitation, the Leibniz formula is wrong, but it will also produce an answer... See here, can't we use Lagrange's law to calculate another answer...
Although Lagrange's law is rather complex, it doesn't have many limitations and can be used in this problem!"
Xi Xing originally looked down on Song Nan's analysis, but as he listened, his expression became serious: It seems that this is the limitation again?
(I'm just making this up, don't take it seriously! I'm not sure if the Leibniz formula has any limitations...)
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