Question

Find the summation formula for AGP​

Answer 1

Answer:

$sn = \dfrac{ar}{1 - r} + dbr \times \dfrac{1}{ {(1 - r)}^{2} }$

Answer 2

The sum of infinite terms of an AGP is given by S ∞ = a 1 − r + d r ( 1 − r ) 2 S_{\infty}=\dfrac{a}{1-r}+\dfrac{dr}{(1-r)^2} S∞=1−ra+(1−r)2dr , where ∣ r ∣ < 1 |r|<1 ∣r∣<1.