Level:
Project ID:
2010001002
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Given an arithmetic sequence $(a_n)_{n=1}^{\infty}$, where $a_5=\frac54$, $a_k=15$ and the common difference is $\frac{11}{4}$, find $k$.
\(10\)
\(-6\)
\(0\)
\(9\)
\( 6\)