Are the functions fi (x) = e+6 and f2(x) = e-7 linearly dependent or independent?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Differential Equations

Are the functions fi (x) = e"+6 and f2(x) = e-7 linearly dependent or independent?
A. Linearly independent
B. Linearly dependent
Which of the following best describes the correct choice for part (a)? (Careful!!)
A. Since the Wronskian never equals zero on (-o, oo).
B. Since the functions are scalar multiples of each other. That is, f = cf, for some constant c.
C. Since the only solution to c1 fı + c2 f2 = 0 is c1 = c2 = 0.
D. Since the Wronskian equals zero for at least one x on (-∞, 0).
Transcribed Image Text:Are the functions fi (x) = e"+6 and f2(x) = e-7 linearly dependent or independent? A. Linearly independent B. Linearly dependent Which of the following best describes the correct choice for part (a)? (Careful!!) A. Since the Wronskian never equals zero on (-o, oo). B. Since the functions are scalar multiples of each other. That is, f = cf, for some constant c. C. Since the only solution to c1 fı + c2 f2 = 0 is c1 = c2 = 0. D. Since the Wronskian equals zero for at least one x on (-∞, 0).
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