## anonymous 5 years ago doing summation notation the problem is this n=4, i=1, Ai=-(1/2) raised to i. how do i do this problem have a test in 2 days and pretty sure this will be on the test. Thanks jdemersmt

$\sum_{1}^{4}\left( -1/2)i\[ \sum_{1}^{4}(-1/2 \ )^{i}$]