pair-st-lines

Question: The equation $8{{x}^{2}}+8xy+2{{y}^{2}}+26x+13y+15=0$ represents a pair of straight lines. The distance between them is



1) $7/\sqrt{5}$
2) $7/2\sqrt{5}$
3) $\sqrt{7}/5$
4) None of these
Solution: Explanation: No Explanation
Equation of lines joining the origin to the point of intersection of a curve and a line and Distance between the pair of lines

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