1.

The centre of an ellipse is C and PN is any ordinate and A, A? are the end points of major axis, then the value of \[\frac{P{{N}^{2}}}{AN\ .\ A'N}\] is

A.            \[\frac{{{b}^{2}}}{{{a}^{2}}}\]   
B.            \[\frac{{{a}^{2}}}{{{b}^{2}}}\]
C.            \[{{a}^{2}}+{{b}^{2}}\]              
D.            1
Answer» B.            \[\frac{{{a}^{2}}}{{{b}^{2}}}\]


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