Point P is =>\(\frac{1}{2}(\frac{9}{7}+\frac{12}{7})=\frac{21}{14}\)
Point Q is=>\(\frac{1}{2}(\frac{6}{7}+\frac{9}{7})=\frac{15}{14}\)
Total distance between P->Q = Distance from P to 0+ Distance from Q to 0
=>\(\frac{21}{14}+\frac{15}{14}=\frac{18}{7}\)
...
Point Q is=>\(\frac{1}{2}(\frac{6}{7}+\frac{9}{7})=\frac{15}{14}\)
Total distance between P->Q = Distance from P to 0+ Distance from Q to 0
=>\(\frac{21}{14}+\frac{15}{14}=\frac{18}{7}\)
...
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