The co-ordinates of pole of line \[lx+my+n=0\]with respect to circles \[{{x}^{2}}+{{y}^{2}}=1\], is [RPET 1987]

\[\left( \frac{l}{n},-\frac{m}{n} \right)\]

\[\left( \frac{l}{n},\frac{m}{n} \right)\]

\[\left( -\frac{l}{n},-\frac{m}{n} \right)\]

\[\left( -\frac{l}{n},\frac{m}{n} \right)\]

The co-ordinates of pole of line \[lx+my+n=0\]with respect to circles

1.	The co-ordinates of pole of line \[lx+my+n=0\]with respect to circles \[{{x}^{2}}+{{y}^{2}}=1\], is [RPET 1987]
A.	\[\left( \frac{l}{n},\frac{m}{n} \right)\]
B.	\[\left( -\frac{l}{n},-\frac{m}{n} \right)\]
C.	\[\left( \frac{l}{n},-\frac{m}{n} \right)\]
D.	\[\left( -\frac{l}{n},\frac{m}{n} \right)\]
Answer» C. \[\left( \frac{l}{n},-\frac{m}{n} \right)\]

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The co-ordinates of pole of line \[lx+my+n=0\]with respect to circles \[{{x}^{2}}+{{y}^{2}}=1\], is [RPET 1987]

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