CBSE Class 12-commerce Answered
if s1, s2, s3........sm are the sum of n terms of m AP's whose first terms are 1, 2.3..........m and common differences are 1, 3,5..........(2m-1), then show that
s1+s2+s3........sm= mn/2 (mn+1)
Asked by rushabhjain.avv | 20 Nov, 2018, 10:51: AM
Expert Answer
Let S = S1 + S2 + .......................+Sm
Answered by Thiyagarajan K | 21 Nov, 2018, 10:46: PM
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