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Question: Answered & Verified by Expert
Consider the following statements. For any integer $\mathrm{n}$,
I. $n^{2}+3$ is never divisible by 17 .
II. $n^{2}+4$ is never divisible by 17 .
Then
MathematicsBinomial TheoremJEE Main
Options:
  • A both I and II are true
  • B both I and II are fal se
  • C I is false and II is true
  • D I is true and II is fal se
Solution:
1005 Upvotes Verified Answer
The correct answer is: I is true and II is fal se
$n^{2}+4$ is divisible by 17 check at $n=9$ $\because \frac{n^{2}+3}{17}=\frac{n^{2}+4}{17}-\frac{1}{17}$ not divisible by 17

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