S(c^~q) S→(-avr) a p
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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Question
#21 only
Transcribed Image Text:In-Class Exercises and Problems for Section 3.5
21.~s (CA~q)
22.-avb
S(-avr)
(dvd)→(pvs)
23.-(wv-s)-→p
24. (pr)e
- (wvn)vb
b(nvk)
→モ)
Transcribed Image Text:8. d
8.
9. c d
9.
10. -c
10.
11. -q→ c
11.
For Problems 15-32, test each argument for validity. If valid, construct a
formal proof. If not, produce a counterexample chart.
15. d-a
16. SAk
r-(an-b)
k (-dvc)
dv-q
db
17. pA~W
18. - (а > b)
-w→(bvc)
(ал р) > w
p→(a→c)
p (WAC)
19. ~ (r→-k)vp
20. g n
~a→-w
(pvq)r
(avd)→ p
gvp
n w
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