Use the De Morgan’s laws to state the negation of the statement "−2−2 and x<7.
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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Use the De Morgan’s laws to state the negation of the statement "−2<x<7".
Reminder: −2<x<7 can also be written as x>−2 and x<7.
a. x≤−2x≤−2 or x≥
b. x<−2x<−2 or x>7
c. x≤−2x≤−2 and x≥7
d. x<−2x<−2 and x>7
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