3. Write the following statements in symbolic language and prove each of them: (a) for all r ER, √5-r and √5 +r cannot both be rational. (1) n. Al CAL C CAL C
3. Write the following statements in symbolic language and prove each of them: (a) for all r ER, √5-r and √5 +r cannot both be rational. (1) n. Al CAL C CAL C
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![3. Write the following statements in symbolic language and prove each of them:
(a) for all r ER, √5-r and √5+r cannot both be rational.
(b) Every prime number p € P>3 is either of the form of 4n+ 1 or of the form of 4n +3
for some n EN
(c) If x is irrational and y is rational then xy is irrational.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd597ffd2-5c4b-4c2e-8332-77ce1607dac1%2F7c207db4-874e-4f4f-88aa-85a31dac7665%2Ffdx27bv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. Write the following statements in symbolic language and prove each of them:
(a) for all r ER, √5-r and √5+r cannot both be rational.
(b) Every prime number p € P>3 is either of the form of 4n+ 1 or of the form of 4n +3
for some n EN
(c) If x is irrational and y is rational then xy is irrational.
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