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"Counting in their heads" - 1895 oil painting
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"Counting in their heads" - 1895 oil painting
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"Counting in their heads" - 1895 oil painting
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08-10-2020, 11:50 AM
Post: #8
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RE: "Counting in their heads" - 1895 oil painting
\(
\frac{{55}^{2}+{65}^{2}+{75}^{2}+{85}^{2}+{95}^{2}+{105}^{2}+{115}^{2}+{125}^{2}+{135}^{2}+{145}^{2}}{10825}\) Also easily done, when you know the right formula :-) |
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