It `T_(k)` denotes the `k ^(th)` term of an H.P. from the bgegining and `(T_(2))/(T_(6)) =9,` then `(T_(10))/(T_(4))` equals :

If t_(n)" is the " n^(th) term of an A.P., then t_(2n) - t_(n) is …..

If t_(r) denotes the rth term in the expansion (x+1/x)^(23) , and t_(12)=4t_(13) , then absx =_____

In an A.P. let T_(r) denote r ^(th) term from beginning, T_(p) - (1)/(q (p +q)), T_(q) -(1)/(p(p+q)), then :

In an A.P. let T_(r) denote r ^(th) term from beginning, T_(p) = (1)/(q (p +q)), T_(q) =(1)/(p(p+q)), then :

If t_(n)" is the " n^(th) term of an A.P. then the value of t_(n+1) -t_(n-1) is ……

Let t_(n) denote the n^(th) term in a binomial expansion. If (t_(6))/(t_(5)) in the expansion of (a+b)^(n+4) and (t_(5))/(t_(4)) in the expansion of (a+b)^(n) are equal, then n is

If t_(n) denotes the n th term of the series 2+3+6+1+18+ …….then t_(50) is

Let the n^(th) term of a series be given by t_(n)=(n^(2)-n-2)/(n^(2)+3n),n<=3. Then product t_(3)t_(4).....t_(50) is equal to

If t_(n) denotes the nth term of the series 2 + 3+ 6+ 11 ,…….then t_(50) is