Arithmetico Geometric Series

The sum of the infinite Arithmetico -Geometric progression3,4,4,… is _________.

If in a /_\ ABC the altitude from the vertices A,B,C on opposite side are in H.P. then sinA,sinB,sinC are in (A) H.P. (B) Arithmetico-Geometric progression (C) A.P. (D) G.P.

Standard results|Some special series| Arithmetic geometric progression

Arithemetic Series,Geometric Series and Harmonic Series Questions

Arithemetic Series,Geometric Series and Harmonic Series Questions

The sum of first 8 terms of the geometric series 2+6+18+54+ . . . Is

An infinite geometric series has sum 2017.A new series is obtained by squaring each term of the original series.Then what is the common ratio of the original series if newly obtained sum is 10 xx the previous sum ?

How many terms of the geometric series 1+4+16+64+... will make the sum 5461