Is n an integer?
1. n^2 is an integer
2. sqrt(n) is an integer
Thanks in advance for your help
OG question 11th ed
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- Senior | Next Rank: 100 Posts
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Ahhh.... I made the mistake of thinking if you sq any # it'll be an integer. Thanks a bunch!tmmyc wrote:Statement 1:
n^2 = 4
n = 2
YES
n^2 = 5
n = sqrt(5)
NO
Insufficient.
Statement 2:
Sufficient since any integer squared is also an integer.
Example
sqrt(n) = 2
n = 4