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Counting & ProbabilityMediumIdentities and Techniques, Proved

Identities and Techniques, Proved · Medium problem

Using k3=6(k3)+6(k2)+(k1)k^3=6\binom{k}{3}+6\binom{k}{2}+\binom{k}{1} and the hockey stick identity, find 13+23+33+⋯+1031^3+2^3+3^3+\cdots+10^3.