Contact us
Choose a category below so we can get back to you as quickly as possible.
將不等式的兩邊同時除以X必須滿足x不為0 而且如果將不等式的兩邊同時除以負數的話兩邊要變號 實際上這道題因該為 -X>X得2x
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.