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If S1,S2,S3,....Sm are the sums of n terms of m A.P.'s whose first terms are 1,2,3,.....,m\) and common differences are 1,3,5,....2m−1 respectively, then S1+S2+S3+....Sm= |
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Answer» If S1,S2,S3,....Sm are the sums of n terms of m A.P.'s whose first terms are 1,2,3,.....,m\) and common differences are 1,3,5,....2m−1 respectively, then S1+S2+S3+....Sm= |
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