Question 1042628
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Determine 6th term in the geometric sequence whose first term is 3 and whose common ratio is -4. 
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<pre>
Use the formula {{{a[n]}}} = {{{a[1]*r^(n-1)}}} for n-th term of a geometric progression.

In your case {{{a[6]}}} = {{{3*(-4)^5}}}
</pre>

On geometric progressions see the lesson 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Sequences-and-series/Geometric-progressions.lesson>Geometric progressions</A>

in this site.