Which of the following is FALSE? none of the given choices O A signal is digital if the DT signal can take on finite number of distinct values. OA signal is analog if the CT signal can take on any value in any continuous interval. 4 O A signal is digital if the DT signal can take on infinite number of distinct values. If the scaling factor is> 1, what happens to the signal in the time domain? O amplified O expanded O unchanged O compressed 13 Which axis given below is a possible axis of symmetry of an even symmetric signal? O none of the given choices O x = 2 O y = 0 Ox=y 2 Which of the following is a bounded signal? O et cos(wt) O e 2t cos (wt) O e²t cos(-wt) O et sin(-wt) Which of the following signals is aperiodic? O 10 sin(nt) O none of the given choices O 3ent O 6 cos (2t + π) 4