Solve.An electronic circuit connected to a speaker emits a pure tone with a waveform given by y = yo sin
. Interestingly, this tone can be rendered (nearly) inaudible by placing a second speaker on top of the first and emitting a tone through the second speaker that has a phase shift of ? relative to the first speaker's waveform. Which waveform below would you choose for this second speaker?
A. y = yo sin
B. y = yo sin
C. y = yo sin
D. y = 
sin
Answer: B
Mathematics
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