Electrical transmission wires which are laid down in winters are stretched tightly to accommodate expansion in summers.
Two such wires lie along the following lines:
l₁​:x+1/3​=y−3/-2​=z+2/-1
​l₂​:x/-1​=y−7/3​=z+7/-2​​
Based on the given information, answer the following questions : Are the lines l₁​ and l₂​ coplanar(distance is zero)?