Answer :


Let the equation of the required ellipse be



Given:


Coordinates of foci = (±1, 0) …(i)


We know that,


Coordinates of foci = (±c, 0) …(ii)


From eq. (i) and (ii), we get


c = 1


It is also given that



we know that,



[ c = 1]


a = 2


Now, we know that,


c2 = a2 – b2


(1)2 = (2)2 – b2


1 = 4 – b2


b2 = 4 – 1


b2 = 3


Substituting the value of a2 and b2 in the equation of an ellipse, we get




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