Question

to know about G.P what is minimum i formation that we need?​

Answer 1

$a \: \: ar\: a {r}^{2} \: a{r}^{3} \\ the \: above \: terms \: are \: said \: to \: be \: in \: gp : \\ if \: the \: ratio \: of \: consecutive \: terms \: (common \: ratio)\: are \: same \: \\ \frac{ar}{a} = \frac{ a{r}^{2} }{ar} = \frac{ a{r}^{3} }{a{r}^{2} } = r \: \\ \\ \\ example \: \\ 2 \: \: 4 \: \: 8 \: \: 16 \: \: 32 \\ here \: the \: common \: ratio \: is \: 2$

Hope this helps you.