I didn't take the final exam this year. I left it until the semester started. I forgot all about advanced mathematics. I only finished five small questions after working on it all night.
Moments: I want to ask you a high-level math question (crying). Is it okay to pay for a lollipop? Please
Yao Lu: "Can lollipops be delivered?" Wow! Yao Lu is good at math?!
"It's okay, but I can only enjoy the delivery service if I understand it."
"Just use Lupida for this. Take the derivation at the top and the derivation at the bottom to get a constant, which is the result."
"Should we just go to Luo? That would be so troublesome. I've been thinking about it for a long time."
"You can first use infinitesimal quantities and replace the sinx below with x, then Luo, I'll write it down for you."
"Thank you, Lao Yao!"
"Do you think I'm old? I won't write it anymore. I'm an old man who can't read."
Intention: love