IIR filter design by approximation of derivatives has the limitations1 – McqOptions

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1.	IIR filter design by approximation of derivatives has the limitations1) Used only for transforming analog high pass filters2) Used for band pass filters having smaller reso t frequencies3) Used only for transforming analog low pass filters4) Used for band pass filters having high reso t frequencies
A.	1, 2 and 3 are correct
B.	1 and 2 are correct
C.	2 and 3 are correct
D.	All the four are correct
Answer» D. All the four are correct

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