Contact us
Choose a category below so we can get back to you as quickly as possible.
把後面的每一列的數都加到第一列,然後第一列就成了一個相同的數位,再把這個數位提出來,第一列就全成了1,然後用下麵的每一行都减去第一行,就成了一個除第一行有數位外,下麵的就成了一個對角矩陣,然後乘起來就可以了 最後結果應該是1
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.