A) \( \Large \pm \sqrt{2} \) |
B) \( \Large \pm 2 \) |
C) \( \Large \pm 1 \) |
D) \( \Large \pm 3 \) |
A) \( \Large \pm \sqrt{2} \) |
Length of perpendicular from the centre \( \Large \left(0,\ 0\right) \) on \( \Large x-y+c=0 \) must be equal to the radius of the circle.
\( \Large \therefore\ \frac{0-0+C}{\sqrt{1}} = \pm 1 \)
=> \( \Large C = \pm \sqrt{2} \)