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If $S_n= 1^3+2^3+......+n^3$ and $T_n=1+2......+n$, then

\[\begin {array} {1 1} (a)\;S_n=T_{n^3} & \quad (b)\;S_n=T_{n^2} \\ (c)\;S_n=T_n^2 & \quad (d)\;S_n=T_n^3 \end {array}\]
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1 Answer

$ (c)\;S_n=T_n^2$
answered Nov 7, 2013 by pady_1
 
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