Let `a_1, a_2, a_3, ,a_(100)` be an arithmetic progression with `a_1=3a n ds_p=sum_(i=1)^p a_i ,1lt=plt=100.` For any integer `n` with `1lt=nlt=20 ,` let`m=5ndot` If `(S_m)/(S_n)` does not depend on `n ,` then `a_2` is__________.

Let a_(1),a_(2),a_(3),...,a_(100) be an arithmetic progression with a_(1)=3 and s_(p)=sum_(i=1)^(p)a_(i),1<=p<=100. For any integer n with 1<=n<=20, let m=5n If (S_(m))/(S_(n)) does not depend on n, then a_(2)

Let a_(1), a_(2), a_(3),..., a_(100) be an arithmetic progression with a_(1) = 3 and S_(p) = sum_(i=1)^(p) a_(i), 1 le p le 100 . For any integer n with 1 le n le 20 , let m = 5n . If (S_(m))/(S_(n)) does not depend on n, then a_(2) is equal to ....

Let a_1 , a_2 , ...., a_100 be an arithmetic progression with a_1 = 3 and S_p = sum_(j = 1)^p a_j , 1 le p le 100 . For any integer n with 1 le n le 20 , let m = 5n , if S_m / S_n does not n , then a_2 is

Let a_1,a_2,a_3,... be in harmonic progression with a_1=5a n da_(20)=25. The least positive integer n for which a_n<0

Let, a_1,a_2,a_3,…. be in harmonic progression with a_1=5 " and " a_(20)=25 The least positive integer n for which a_n lt 0

If a_1,a_2,a_3 …. are in harmonic progression with a_1=5 and a_20=25 . Then , the least positive integer n for which a_n lt 0 , is :

Let, a_1,a_2_a,a_3,…. be in harmonic progression with a_1=5 " and " a_(20)=25 The least positive integer n for which a_n lt 0

Let a_1 , a_2 ,... be in harmonic progression with a_1 = 5 and a_20 = 25 . The least positive integer n for which a_n lt 0

Let a_1, a_2, a_3, ,a_(101) are in G.P. with a_(101)=25a n dsum_(i=1)^(201)a_1=625. Then the value of sum_(i=1)^(201)1/(a_1) equals____________.