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Mesaj |
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2^3 + 4^3 + 6^3+ .......+ (2n)^3 =
1x3 + 2x5 + 3x7 +....+n(2n+1)=
1x3 + 2x4 + 3x5 + ...+ n(n+2)=
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dienuca
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[Citat]
2^3 + 4^3 + 6^3+ .......+ (2n)^3 =
1x3 + 2x5 + 3x7 +....+n(2n+1)=
1x3 + 2x4 + 3x5 + ...+ n(n+2)= |
http://goo.gl/nCYd2bhttp://goo.gl/4AivjDhttp://goo.gl/db0Fp4
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