Contact us
Choose a category below so we can get back to you as quickly as possible.
如果題目是: y = 1/(3^x -1) 則可以: 因為y = 1/(3^x -1)的定義域是x≠0 因為y = 3^x的值域是y>0且y≠1 所以y = 3^x - 1的值域是y>-1且y≠0 所以y = 1/(3^x -1)的值域是(-∞,-1)∪(-1,+∞)或者寫y≠-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.