(1-1/2)×(1-1/3)×(1-1/4)×……×(1-1/2018) isilah titik tersebut dengan cara

(1 - 1/2) × (1 - 1/3) × (1 - 1/4) × ... × (1 - 1/2018)
= [tex] \frac{1}{2} [/tex] × [tex] \frac{2}{3} [/tex] × [tex] \frac{3}{4} [/tex] × ... × [tex] \frac{2017}{2018} [/tex]
= 1/2018