Test yourself on some tricky properties of sigma notation.

Problem

Which of the following is equivalent to space, space, sum, start subscript, n, equals, 3, end subscript, start superscript, infinity, end superscript, left parenthesis, minus, start fraction, 1, divided by, 2, end fraction, right parenthesis, start superscript, n, end superscript?
Select all that apply.
Select all that apply.