Mathematics
SMA

想請問這題謝謝

.當 1 1 1×2×3 2×3×4 + + 1 3×4x5 + + 1 n(n+1)(n+2) 40 29 120 時,n最小為何? 答:7

Answers

Apa kebingunganmu sudah terpecahkan?