1.

The points on the x-axis whose perpendicular distance from the line \[\frac{x}{a}+\frac{y}{b}=1\] is a, are            [RPET 2001; MP PET 2003]

A.            \[\left[ \frac{a}{b}(b\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]               
B.            \[\left[ \frac{b}{a}(b\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]
C.            \[\left[ \frac{a}{b}(a\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]               
D.            None of these
Answer» B.            \[\left[ \frac{b}{a}(b\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]


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