Put the following statements into order to prove that if 3n+4 is even then n is even. Put N next to the 3 statements that should not be used. 1. Then, 3n+4=3(2k+1)+4=6k+7=2(3k+3)+1. 2. By definition of odd, there exists integer k such that n=2k+1. 3. Thus, if n is odd then 3n+4 is odd or by contradiction, if 3n+4 is even then n is even,. 4. Therefore, by definition of odd, 3n+4 is odd. 5. Since k is an integer, t =3k+3 is also an integer. 6. Thus, there exists an integer t such that 3n+4=2t+1. 7. Suppose n is odd. 8. Thus, if n is odd then 3n+4 is odd or by contraposition, if 3n+4 is even then n is even, . 9. Suppose 3n+4 is even. 10. By definition of odd, n=2k+1.
Put the following statements into order to prove that if 3n+4 is even then n is even. Put N next to the 3 statements that should not be used. 1. Then, 3n+4=3(2k+1)+4=6k+7=2(3k+3)+1. 2. By definition of odd, there exists integer k such that n=2k+1. 3. Thus, if n is odd then 3n+4 is odd or by contradiction, if 3n+4 is even then n is even,. 4. Therefore, by definition of odd, 3n+4 is odd. 5. Since k is an integer, t =3k+3 is also an integer. 6. Thus, there exists an integer t such that 3n+4=2t+1. 7. Suppose n is odd. 8. Thus, if n is odd then 3n+4 is odd or by contraposition, if 3n+4 is even then n is even, . 9. Suppose 3n+4 is even. 10. By definition of odd, n=2k+1.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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![Put the following statements into order to prove that if 3n+4 is even then n is even. Put N next to the 3 statements that
should not be used.
1. Then, 3n+4=3(2k+1)+4=6k+7=2(3k+3)+1.
2. By definition of odd, there exists integer k such that n=2k+1.
3. Thus, if n is odd then 3n+4 is odd or by contradiction, if 3n+4 is even then n is even,.
4. Therefore, by definition of odd, 3n+4 is odd.
5. Since k is an integer, t =3k+3 is also an integer.
6. Thus, there exists an integer t such that 3n+4=2t+1.
7. Suppose n is odd.
8. Thus, if n is odd then 3n+4 is odd or by contraposition, if 3n+4 is even then n is even, .
9. Suppose 3n+4 is even.
10. By definition of odd, n=2k+1.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa95c70e5-ce04-4ec0-ab11-db1260459fc1%2F29ab5e84-c351-47e8-ba83-cccfe2a67f0f%2Fxu0hfsi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Put the following statements into order to prove that if 3n+4 is even then n is even. Put N next to the 3 statements that
should not be used.
1. Then, 3n+4=3(2k+1)+4=6k+7=2(3k+3)+1.
2. By definition of odd, there exists integer k such that n=2k+1.
3. Thus, if n is odd then 3n+4 is odd or by contradiction, if 3n+4 is even then n is even,.
4. Therefore, by definition of odd, 3n+4 is odd.
5. Since k is an integer, t =3k+3 is also an integer.
6. Thus, there exists an integer t such that 3n+4=2t+1.
7. Suppose n is odd.
8. Thus, if n is odd then 3n+4 is odd or by contraposition, if 3n+4 is even then n is even, .
9. Suppose 3n+4 is even.
10. By definition of odd, n=2k+1.
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