sum of 71+72+73+ ..... 100
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hii frnd,
71+72+73+74+75+76...100=2565
here is ur ans
hope it helped u
71+72+73+74+75+76...100=2565
here is ur ans
hope it helped u
pals1:
chepli tuttas
Answered by
0
If common difference is d, number of terms n and the last term l,
then Sn = (n/2)[2l-(n -1)d]
then
Sn = (30/2)[2x100-(30-1)1]
Sn = 15[200-29]
Sn = 15 x 171 = 2565
i hope it will help you
regards
then Sn = (n/2)[2l-(n -1)d]
then
Sn = (30/2)[2x100-(30-1)1]
Sn = 15[200-29]
Sn = 15 x 171 = 2565
i hope it will help you
regards
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