Math, asked by jiteshdigga434paohtw, 1 year ago

First and last term of anA.P. are 5,45 is respectively if the sum of all its terms is 400

Answers

Answered by asisnehra
1
common difference is 16

asisnehra: see question first
shekharrajbhar: ok
shekharrajbhar: how common difference is 16
asisnehra: sorry brother
shekharrajbhar: what
shekharrajbhar: sorrybfor what
asisnehra: we use formulae s= n/2(a+l) and we get there are n=16term in ap then,,,,, using formula an = a+ (n-1)d then. we get d= 8/3
shekharrajbhar: whats tbe value of n
asisnehra: n=16
shekharrajbhar: how
Answered by shekharrajbhar
0
I think 15965 is the answer I find. by a+(n-1)d

asisnehra: what u find
shekharrajbhar: so what will be the answer
shekharrajbhar: i a m comfused
asisnehra: u have to find difference
shekharrajbhar: sorry i am unable
shekharrajbhar: l is 45
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