let `a_n` denotes the `n^th` term of `G.P.` given that `S=Sigma_(n=1->10)a_n` and `T=Sigma_(n=1->10)1/a_n` then the value of `pi_(n=1->10)a_n=`

Let a_n be the n^(th) term, of a G.P of postive terms. If Sigma_(n=1)^(100)a_(2n+1)= 200 and Sigma_(n=1)^(100)a_(2n)=100, " then" Sigma_(n=1)^(200)a_(n)

Let a_n be the nth therm of a G.P of positive numbers .Let Sigma_(n=1)^(100) a_(2n)=alpha and Sigma_(n=1)^(100)a_(an-1)=beta then the common ratio is

If a_n=sin((npi)/6) then the value of sum a_n^2

If a_n=sin((npi)/6) then the value of sum a_n^2

Find the 7^(th) term of the sequence whose n^(th) term is a_n = (-1)^n n^2

Find the 11^(th) term of the following sequence whose n^(th) term is a_n = (-1)^(n + 1) (5n -10)

Determine the number of terms in G.P. if a_1=3,a_n=96 and S_n=189 .

Let a_n=1000^n/(n!) for n in N , then a_n is greatest, when value of n is

Find the 10^(th) term of the sequence whose n^(th) term is a_n = (n-5)/(n + 7)