For each of the following forms determine whether the following limit type is indeterminate, always has a fixed finite value, or never has a fixed finite value. In the first case answer IND, in the second case enter the numerical value, and in the third case answer DNE. For example
IND $\quad \frac{0}{0}$

0 $\qquad \frac{0}{1}$

DNE $\quad \frac{1}{0}$

To discourage blind guessing, this problem is graded on the following scale
0-9 correct = 0
10-13 correct = .3
14-16 correct = .5
17-19 correct = .7
Note that l'Hospital's rule (in some form) may ONLY be applied to indeterminate forms.
1. $1^\infty$
2. $\infty^{-e}$
3. $1\cdot\infty$
4. $\infty\cdot\infty$
5. $\pi^{-\infty}$
6. $\infty^0$
7. $\infty^1$
8. $\frac{1}{-\infty}$
9. $0^0$
10. $\infty^{-\infty}$
11. $0^\infty$
12. $\infty -\infty$
13. $\pi^\infty$
14. $1^0$
15. $\frac{0}{\infty}$
16. $\infty^\infty$
17. $\frac{\infty}{0}$
18. $0^{-\infty}$
19. $1^{-\infty}$
20. $0\cdot\infty$