Let `T_r` be the rth term of an A.P., for `r=1,2,3,` If for some positive integers `m ,n ,` we have `T_m=1/na n dT_n=1/m ,t h e nT_(m n)` equals `1/(m n)` b. `1/m+1/n` c. `1` d. `0`

Let T_r be the rth term of an A.P., for r=1,2,3,..... If for some positive integers m ,n , we have T_m=1/na n dT_n=1/m ,t h e nT_(m n) equals a. 1/(m n) b. 1/m+1/n c. 1 d. 0

Let T_r denote the rth term of a G.P. for r=1,2,3, If for some positive integers ma n d n , we have T_m=1//n^2 and T_n=1//m^2 , then find the value of T_(m+n//2.)

Let T_r denote the rth term of a G.P. for r=1,2,3, If for some positive integers ma n dn , we have T_m=1//n^2 and T_n=1//m^2 , then find the value of T_(m+n//2.)

Let T be the r th term of an A.P. whose first term is a and conmon difference is d . If for some positive integers m ,n, T_(n)= (1)/(m) , T_(m) = (1)/(n) then (a – d) equals

If T_(r) be the rth term of an A.P. with first term a and common difference d, T_(m)=1/n and T_(n)=1/m then a-d equals

Let t_r denote the r^(th) term of an A.P. Also suppose t_m=1/n and t_n=1/m for some positive integers m and n then which of the following is necessarily a root of the equation? (l+m-2n)x^2+(m+n-2l)x+(n+l-2m)=0

if m t h term of an A.P. is n\ a n d\ n t h term is m , then write its m+n t h term.

Let T_r be the rth term of an A.P. whose first term is -1/2 and common difference is 1, then sum_(r=1)^n sqrt(1+ T_r T_(r+1) T_(r+2) T_(r+3))

Let T_r a n dS_r be the rth term and sum up to rth term of a series, respectively. If for an odd number n ,S_n=na n dT_n=(T_n-1)/(n^2),t h e nT_m ( m being even)is 2/(1+m^2) b. (2m^2)/(1+m^2) c. ((m+1)^2)/(2+(m+1)^2) d. (2(m+1)^2)/(1+(m+1)^2)

If the mth term of an A.P. be 1//n and nth term be 1//m then show that its ( m n )th term is 1.