For a variable line where T The locus of the foot of perpendicular drawn from origin ...........

For a variable line $\frac{x}{a}+\frac{y}{b}=1$ where .T $\frac{1}{a^{2}}+\frac{1}{b^{2}}+\frac{1}{c^{2}}$ . The locus of the foot of perpendicular drawn from origin to it is

$x^{2}+y^{2}=c^{2}/2$

$x^{2}+y^{2}=c^{2}$

$x^{2}+y^{2}=2c$

None

Explanation:

$x^{2}+y^{2}=c^{2}/2$

By: Swaminath Yadav

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For a variable line where T The locus of the foot of perpendicular drawn from origin ...........

Explanation:

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