For this case we must resolve the following expression:
[tex]2 ^ {\sqrt {19}}[/tex]
We have by definition:[tex]\sqrt {19} = 4.35889894354[/tex]
Now, rewriting the expression we have:
[tex]2 ^ {4,35889894354} = 20,51914828[/tex]
If we round the expression we have:
[tex]2 ^ {\sqrt {19}} = 20.5191[/tex]
Answer:
Option C
