Contact us
Choose a category below so we can get back to you as quickly as possible.
這樣的函數是很多的,所以答案並不唯一.僅舉一例簡要說明.如:函數y=ax²;+b(a≠0且b∈R),當a>0時(無論b是哪個實數),這個函數在區間(-∞,0]上都是减函數;而在區間[0,+∞)上它又是增函數.這樣回答可以嗎?
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.