A wave represented by the equation y=acos(kx-ωt) is superposed with another wave to form a stationary wave such that point x=0 is a node. The equation for the other wave is?

A wave represented by the equation y=acos(kx-ωt) is superposed with

1.	A wave represented by the equation y=acos(kx-ωt) is superposed with another wave to form a stationary wave such that point x=0 is a node. The equation for the other wave is?
A.	acos(kx-ωt)
B.	-acos(kx-ωt)
C.	-acos(kx+ωt)
D.	-asin(kx-ωt)
Answer» D. -asin(kx-ωt)

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A wave represented by the equation y=acos(kx-ωt) is superposed with another wave to form a stationary wave such that point x=0 is a node. The equation for the other wave is?

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