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7. The solution z = (x, y) to the equation in Problem 6 is A. /1 (12.+ 1/3) 2 √3 B. (-12. ± 12³) + √3 c. (1/3³, +12) C. 2 D.(-√3³. ± ²) 2

7. The solution z = (x, y) to the equation in Problem 6 is A. /1 (12.+ 1/3) 2 √3 B. (-12. ± 12³) + √3 c. (1/3³, +12) C. 2 D.(-√3³. ± ²) 2

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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Please answer problem 7.
7. The solution z = (x, y) to the equation in Problem 6 is (1/3.+12) 1 3 √√3 B. · (-²2₁ +2²³) D. (-1/²³₁ + ² ) 2 E. none of the above A. 1 √3 2 C.
Transcribed Image Text:7. The solution z = (x, y) to the equation in Problem 6 is (1/3.+12) 1 3 √√3 B. · (-²2₁ +2²³) D. (-1/²³₁ + ² ) 2 E. none of the above A. 1 √3 2 C.
6. If z = x + iy = (x, y), then the equation z²+z+1=0 is written as (x, y)(x, y) + (x, y) + (1,0) = (0,0) Which of the following is correct? A. (x² - y² + x + 1, 2xy + y) = (0,0) B. (x² - y² + 2x + 1, 2xy + y) = (0,0) C. (x² + y² + x + 1, 2xy + y) = (0,0) D. (x² - y² + x + 1,4xy + y) = (0,0) E. None of the above
Transcribed Image Text:6. If z = x + iy = (x, y), then the equation z²+z+1=0 is written as (x, y)(x, y) + (x, y) + (1,0) = (0,0) Which of the following is correct? A. (x² - y² + x + 1, 2xy + y) = (0,0) B. (x² - y² + 2x + 1, 2xy + y) = (0,0) C. (x² + y² + x + 1, 2xy + y) = (0,0) D. (x² - y² + x + 1,4xy + y) = (0,0) E. None of the above
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