Digital Signal Processing Test Questions

Q.  The filter that may not be realized by approximation of derivatives techniques are

1) Band pass filters
2) High pass filters
3) Low pass filters
4) Band reject filters

a. 1, 2 and 3 are correct
b. 2 and 4 are correct
c. 2 and 3 are correct
d. All the four are correct

ANSWER: See Answer
No explanation is available for this question!