Contact us
Choose a category below so we can get back to you as quickly as possible.
原式=log3{(3^x-1)*(3*3^x-3)} =log(3^x-1)²;*log3(3)=log(3^x-1)²; 所以有:0
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.