1.

The area of the figure formed by the lines \[ax+by+c=0,ax-by+c=0,ax+by-c=0\]and \[ax-by-c=0\] is

A. \[\frac{{{c}^{2}}}{ab}\]
B. \[\frac{2{{c}^{2}}}{ab}\]
C. \[\frac{{{c}^{2}}}{2ab}\]
D. \[\frac{{{c}^{2}}}{4ab}\]
Answer» C. \[\frac{{{c}^{2}}}{2ab}\]


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