Contact us
Choose a category below so we can get back to you as quickly as possible.
C:x²;/a²;+y²;/b²;=1(a>b>0),焦點在x軸上橢圓C過點(0,2),那麼b=2∵e=c/a=√2/2∴a=√2c又a²;=b²;+c²;∴2c²;=4+c²;,c²;=2,a²;=8∴橢圓方程為x²;/8+y²;/4=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.