Respuesta :

Step-by-step explanation:

[tex]U _{ {9}^{th} } \: term = U _{ {1}^{st} } {r}^{(n - 1)} \\ = 10 \times {4}^{(9 - 1)} \\ = 655360 \\ {9}^{th} \: term \: is \: 655360[/tex]