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

Let T_(r) be the r^(th) term of an A.P whose first term is a and common difference is d IF for some integer m,n,T_(m)=(1)/(n) and T_(n)=(1)/(m) then a-d=

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 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

Let T_(r ) be the rth term of an A.P. whose first term is a and common difference is d. If for some positive integers, m,n,mcancel(=)n, T_(n) = ( 1)/( n ) and T_(n) = ( 1)/( m) , then a -d equals :

Let t_(r ) be the rth term of an A.P. whose first terms is 'a' and common difference is d. If for some positive integers, m, n (m ne n) T_(m)= (1)/(n) and T_(n)= (1)/(m) , then a-d=

Let T_r be the rth term of an A.P. whose first term is a and common difference is d. If for some positive integers, m,n, m ne n, T_m =1/n and T_n=1/m , then a-d equals :