zài / zhè / dào / tí / zhōng / wǒ / men / xiān / qiú / dǎo / hán / shù / zài / jì / suàn / hán / shù / zhí

在这道题中，我们先求导函数，再计算函数值。

In this problem, we first find the derivative function and then calculate the function value.