Finding the Equation of an Ellipse Given The Foci and Length of the Major Axis

Finding the Equation of an Ellipse Given The Foci and Length of the Major Axis

[nancyhindman]

I'm in Precalc and taking my own notes to get ahead and catch up on other work, you saved my life!!! I've been so frustrated trying to figure this out independently and the video you did was the exact formula I needed to find. Thank you!!

[annikab]

Thank you so much! I finally know where I went wrong.

[mehedihasanreaz]

when foci are (-1, -1), (1, 1) and the length of major axis is 2root3. then the method not ans: 2x^2+2y^2-2xy-3=0 what can i do