f(5/2)=|log3 (5/2)|=log3 (5/2)=log3(5) -log3(2)
f(5/6)=|log3 (5/6)|=-log3 (5/6)=log3(6) -log3(5)=1+log3(2) -log3(5)
∴f(5/2)+f(5/6)=1
f(5/2)=|log3 (5/2)|=log3 (5/2)=log3(5) -log3(2)
f(5/6)=|log3 (5/6)|=-log3 (5/6)=log3(6) -log3(5)=1+log3(2) -log3(5)
∴f(5/2)+f(5/6)=1