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TIMO 2017 - Senior Secondary (Grades 10-12) - Heat Round - Paper 5 Question 15

TIMO · TIMO 2017 - Senior Secondary (Grades 10-12) - Heat Round - Paper 5

Question 15

Let $f(n)=4n^3-6n^2+4n-1$. Find the units digit of $f(1)+f(2)+\cdots+f(2016)$.