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If p be the length of the perpendicular ...

If p be the length of the perpendicular from the origin on the line `x/a+y/b=1`, then

A

`p^2=a^2+b^2`

B

`p^2=1/a^2+1/b^2`

C

`1/p^2=1/a^2+1/b^2`

D

none of these

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