Contact us
Choose a category below so we can get back to you as quickly as possible.
題目沒出錯吧?這題怎麼簡算都還是相對複雜的啊 最多就選取公因數7/20,原式=7/20 *(7+21/11) =7/20 * 98/11 =343/110
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.