Which of these statements are correct?
A. 1,2 and 3
B. 1 and 2
C. 1 and 3
D. 2 and 3
Answer:C
Which of these statements are correct?
A. 1,2 and 3 B. 1 and 2 C. 1 and 3 D. 2 and 3
Explanation: Characteristic equation is (z+0.5) (z-0.5) =0