SOLUTION: if n is any negative number ,which of the following must be positive ?
a n/2 b 2n c n + 2 d n - 2 e 2 - n
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Question 303733: if n is any negative number ,which of the following must be positive ?
a n/2 b 2n c n + 2 d n - 2 e 2 - n
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
2 - n
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If n is a negative number, then . Now multiply both sides by -1 to get (notice the sign change). Now simply add two to both sides to get . Since , this means that is definitely greater than zero. So is positive for all negative values of 'n'.
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