Level:
Project ID:
1003084910
Accepted:
1
Clonable:
0
Easy:
1
We were given a geometric sequence \( \frac12\text{, }\ \frac14\text{, }\ \dots \).
What is the formula for the \( n \)th element of the sequence?
\( a_n=\frac1{2^n}\text{, }\ n\in\mathbb{N} \)
\( a_n=\frac1{2^{n+1}}\text{, }\ n\in\mathbb{N} \)
\( a_n=\frac1{2^{n-1}}\text{, }\ n\in\mathbb{N} \)
\( a_n=\frac1{2^{2n}}\text{, }\ n\in\mathbb{N} \)