Question

PLEASE HELP!!!

A. (-1) + (-2) + (-3) + (-4) + (-5) + (-6)

B. 0 + (-1) + (-2) + (-3) + (-4) + (-5)

C. 1 + 2 + 3 + 4 + 5 + 6

D. 0 + 1 + 2 + 3 + 4 + 5

Answer 1

`\bf \sum\limits_(n=1)^(6)~(1-n) \\\\\\ \stackrel{\stackrel{n=1}{1-1}}{0}~~+~~\stackrel{\stackrel{n=2}{1-2}}{-1}~~+~~\stackrel{\stackrel{n=3}{1-3}}{-2}~~+~~\stackrel{\stackrel{n=4}{1-4}}{-3}~~+~~\stackrel{\stackrel{n=5}{1-5}}{-4}~~+~~\stackrel{\stackrel{n=6}{1-6}}{-5}`

Answer 2

b or c for the equation because it is 1-n