Mathematics, 01.06.2021 23:20, only1cache
15. If S., Sā, S3, Sm be the sums of n terms of m A. Ps, whose first
term as well as the common differences are 1,2,3, , m respectively;
show that S; + S2 + S3 +
+Sm
(m +1) (n + 1).
4
mn
=ā
Answers: 3
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15. If S., Sā, S3, Sm be the sums of n terms of m A. Ps, whose first
term as well as the common dif...
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