Contact us
Choose a category below so we can get back to you as quickly as possible.
x²;=(64t²;)/(4+t²;)²;y²;=(4-t²;)²;/(4+t²;)²;=(t^4-8t^2+16)/(4+t²;)²;=(t^4+8t^2+16)/(4+t²;)²;-(16t^2)/(4+t²;)²;=1-x²;/4故x²;/4+y²…
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.