What is/are the value/s of k in the quadratic equation 2x² – 5x – k = 0 whose roots are imaginary? A. k< B. k<- C. k>-5 D. k> O A Ов O D

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Q1-Mini Task 3: Nature of Roots of Quadratic Equation
91 E11 KB/s
1:39 pm
O 16% D
В
What is/are the value/s of k in the quadratic equation 2x? – 5x – k = 0 whose
roots are imaginary?
A. k<25
C. k>- 25
D. k>2
B. k<-
O A
Which of the following quadratic equations has rational, equal and real roots?
A. 9- 6x + x² = 0
C. x² + 4x – 21=0
Transcribed Image Text:91 E11 KB/s 1:39 pm O 16% D В What is/are the value/s of k in the quadratic equation 2x? – 5x – k = 0 whose roots are imaginary? A. k<25 C. k>- 25 D. k>2 B. k<- O A Which of the following quadratic equations has rational, equal and real roots? A. 9- 6x + x² = 0 C. x² + 4x – 21=0
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