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Which of the following is NOT true? * A.) If a is in R and a is not equal to 0, then a^2 > 0. B.) If m and n are elements in R with m + n = m, then n = 0. C.) If a < b and c < 0, then ca < cb. D.) If - m, n are elements of P, then - mn is also an element of P, where P is the set of positive real numbers.

Which of the following is NOT true? * A.) If a is in R and a is not equal to 0, then a^2 > 0. B.) If m and n are elements in R with m + n = m, then n = 0. C.) If a < b and c < 0, then ca < cb. D.) If - m, n are elements of P, then - mn is also an element of P, where P is the set of positive real numbers.

Advanced Engineering Mathematics
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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Which of the following is NOT true? * A.) If a is in R and a is not equal to 0, then a^2 > 0. B.) If m and n are elements in R with m + n = m, then n = 0. C.) If a < b and c < 0, then ca < cb. D.) If - m, n are elements of P, then - mn is also an element of P, where P is the set of positive real numbers.
Transcribed Image Text:Which of the following is NOT true? * A.) If a is in R and a is not equal to 0, then a^2 > 0. B.) If m and n are elements in R with m + n = m, then n = 0. C.) If a < b and c < 0, then ca < cb. D.) If - m, n are elements of P, then - mn is also an element of P, where P is the set of positive real numbers.
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