Level:
Project ID:
1003124706
Accepted:
1
Clonable:
0
Easy:
0
The first term of a geometric sequence is \( 5 \) and the fourth term is \( 40 \). Find the \( n \)th term.
\( a_n=5\cdot2^{n-1} \), \( n\in\mathbb{N} \)
\( a_n=\frac{5n}2 \), \( n\in\mathbb{N} \)
\( a_n=5\cdot2^n \), \( n\in\mathbb{N} \)
\( a_n=5n \), \( n\in\mathbb{N} \)
\( a_n=5\cdot\left(2^{n}-1\right) \), \( n\in\mathbb{N} \)