1.

What is the equation of the ellipse with foci (1,1) and (-1,-1) and length the of major axisis 4.​

Answer»

ANSWER: 0

Step-by-step explanation:

Foci (−1,1) & (1,1) of ellipse.

Passes through (0,0)

Centre of ellipse =(0,1)  MIDPOINTS of the LINE between focus

value B=1

ae=1

a  

1−  

a  

2

 

b  

2

 

​  

 

​  

⇒a  

1−  

a  

2

 

1

​  

 

​  

=1⇒  

a  

2

−1

​  

=1

a=  

2

​  

 

centre is shifted to (0,1).

(  

2

​  

)  

2

 

(x−0)  

2

 

​  

+  

1

(y−1)  

2

 

​  

=1

2

x  

2

 

​  

+  

1

y  

2

+1−2y

​  

=1

x  

2

+2y  

2

+2−4y=2

x  

2

+2y  

2

−4y=0



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