For the following, write out each term of the summation in the boxes provided. Then compute the sum.

1. $\displaystyle{ \sum_{i=-2}^{2} \sin\left( \frac{\pi i}{2} \right) = }$ $+$ $+$ $+$ $+$ $=$

   ---

2. $\displaystyle{ \sum_{i=0}^{5} (-1)^i\cos(\pi i) = }$ $+$ $+$ $+$ $+$ $+$ $=$