Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
PG tem termo geral a_n = 4 * 3^(n-1) . Calcule a_7
PG tem termo geral a_n = 4 * 3^(n-1) . Calcule a_7
Natural Language
Math Input
Extended Keyboard
