A Transverse Periodic Wave Is Represented by the Equation Y(z,t)

A transverse periodic wave is represented by the equation y(z,t) = -2.0 cm sin(1,200 rad/s t - 20.0 m^-1 x) .Another transverse wave is represented by the equation y(z,t) = +2.0 cm sin(1,200 rad/s t + 20.0 m^-1 z) .What is the equation that represents the superposition of the two waves?

A) y(z,t) = 4.0 cm sin(1,200 rad/s t - 20.0 m^-1 z)
B) y(x,t) = 4.0 cm sin(1,200 rad/s t) cos (20.0 m^-1 x)
C) y(x,t) = +4.0 cm cos(1,200 rad/s) sin (20.0 m^-1 x)
D) y(x,t) = +4.0 cm cos(1,200 rad/s) + (20.0 m^-1 x)

Correct Answer:

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