A.  x2/a2+y2/b2=1/a2

B.  x2/a2+y2/b2=1/b2

C.  x2/a4+y2/b4=1/a2

D.  x2/a4+y2/b4=1/b2

Correct Answer :
x2/a4+y2/b4=1/a2
Explanation :
No Explanation available for this question
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