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@Rainmaker1973: Visual proof that: 6 ⋅ (1² +...

@Rainmaker1973
30 views May 16, 2025
1
Visual proof that:

6 ⋅ (1² + 2² + ... + n²) = (n) (n+1) (2n+1)

[🎞️ Beau Janzen / reason4math]
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