In triangle $LMN$, we have $\angle M = 90^\circ$, $MN = 2$, and $LM = \sqrt{21}$. What is $\sin L$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
In triangle $LMN$, we have $\angle M = 90^\circ$, $MN = 2$, and $LM = \sqrt{21}$. What is $\sin L$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{2}{5}
In triangle $LMN$, we have $\angle M = 90^\circ$, $MN = 2$, and $LM = \sqrt{21}$. What is $\sin L$?
train