Contact us
Choose a category below so we can get back to you as quickly as possible.
logx你的底數不是很明確,我在下麵的式子裏用a代替log(a)x表示以a為底x的對數f'(x)=(1/xlna *x-logx)/x²;=(1/lna-log(a)x)/x²;f'(x)=[-1/xlna *x²;-(1/1na-log(a)x)*2x]/x^4=[-3/lna+2lo…
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.