If hlp(n) denotes the impulse response of a low pass filter with freq – McqOptions

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1.	If hlp(n) denotes the impulse response of a low pass filter with frequency response Hlp(ω), then what is the frequency response of the high pass filter in terms of Hlp(ω)?
A.	Hlp(ω-π/2)
B.	Hlp(ω+π/2)
C.	Hlp(ω-π)
D.	Hlp(ω+π)
Answer» D. Hlp(ω+π)

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