Question

Using a_n=a_1r^{n-1}, what is the 10th term in this geometric sequence? %2C..." id="TexFormula1" title="0.2,1,5,25,125,..." alt="0.2,1,5,25,125,..." align="absmiddle" class="latex-formula">

Answer 1

$a_n=a_1.r^{n-1}\\ \\ a_{10}=(0.2).5^9\\ \\ a_{10}=(0.2).1,953,125=390,625$