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4 years ago

13

PLEASE HELP!!!

2 answers:

Svetradugi [14.3K]4 years ago

8 0

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

Fudgin [204]4 years ago

8 0

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

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