# tell me the sequence in the below question;

• April 14th 2009, 09:33 AM
bc080402276
tell me the sequence in the below question;
Find the 15th term of the following sequence

1/2,1/4,1/8,... ( Use sequence formula)
• April 14th 2009, 09:42 AM
Plato
$a_n = \frac{1}{2^n}$
• April 14th 2009, 08:10 PM
bc080402276
sequence formula
sir please tell me more easily
i cant understand that how can i solve my question according to your given formula..
please kindly again send me the proper solution
• April 14th 2009, 08:52 PM
Chris L T521
Quote:

Originally Posted by bc080402276
sir please tell me more easily
i cant understand that how can i solve my question according to your given formula..
please kindly again send me the proper solution

What Plato gave you should be enough to help you solve the problem. He gave you the pattern of the sequence for an arbitrary n value. Since you're looking for the 15th term of the sequence, you want to find $a_{15}$. And by the formula provided, what would that be?
• April 14th 2009, 08:52 PM
mr fantastic
Quote:

Originally Posted by bc080402276
sir please tell me more easily
i cant understand that how can i solve my question according to your given formula..
please kindly again send me the proper solution
You substitute $n = 15$ into the given formula.