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If p is the length of perpendicular from...

If p is the length of perpendicular from the origin on the line `x/a+y/b=1` and `a^(2),p^(2),b^(2)` are in A.P., then

(A) `a^(4)+b^(4)=0`
(B) `a^(4)-b^(4)=0`
(C) `a^(2)+b^(2)=0`
(D) `a^(2)-b^(2)=0`

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