Find the arithmetic series 5+11+17+..........+95
Anonymous:
S then we have use the sn formula to find sum am I right
so now sum=n/2 {5+96} =8(100)=800
But 5+96 is coming as101
L+a means 95+5 only an
its 95
yaa sorry 95+ 5 , typing mistake!
K thnks fr helping
95+6=101
No 95+5 only
Because l=95
Answers
Answered by
2
a = 5 d = 6
n(
+ 
)/2
16(5+95)/2
1600/2
= 800
n(
16(5+95)/2
1600/2
= 800
Thank but I have to use formula
ya a, a+d, a+2d is the formula for thatseries
No another formula is there
yes u are correct i m sorry sruthi i couldn't explain i forgot so i m really sorry
No problem pa but thanks fr helping me
ok welcome iot was a pleasure helping u
Kopal can we be frnds
ofcourse shrthi
i mean shruthi
Answered by
0
yes so the arithmatic series is :-
5+ 11 + 17+ 23+ 29+ 35 + 41+ 47 + 53 + 59 + 65 + 71 + 77+ 83 + 89+ 95.
so there u can see that the no. difference vbetween this is of 6 digits.
hope this helped u !!!!!!!!!!!
and if it did so then mark it as the best.
and formula for this can be a, a+d , a + 2d, a + 3d.
5+ 11 + 17+ 23+ 29+ 35 + 41+ 47 + 53 + 59 + 65 + 71 + 77+ 83 + 89+ 95.
so there u can see that the no. difference vbetween this is of 6 digits.
hope this helped u !!!!!!!!!!!
and if it did so then mark it as the best.
and formula for this can be a, a+d , a + 2d, a + 3d.
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