15" If "(t_(a))" is an A.P.such that "(t_(4))/(t_(7))=(2)/(3)," find "(t_(8))/(t_(9))

If {t_(n)} is n A.p.such that (t_(4))/(t_(1))=(2)/(3), find (t_(8))/(t_(9))

In an AP , it s being given that T_(4)/T_(7) = 2/3 . " Find " T_(7)/T_(10)

For an A.P. if t_(4)=20 and t_(7)=32 , find a,d and t_(n) .

For an A.P. if t_(4)=20 and t_(7)=32 , find a,d and t_(n) .

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 :

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 for a G.P. { t_(n)},t_(2) =-6 and t_(5) =48 find S_(7) .

If for a G.P. , t_(8) :t_(3) =32 and S_(9) =255, then : t_(1) =

If for a G.P. { t_(n)}, t_(7) : t_(4) =27 and S_(5) =242, and t_(3) .