Y= 0,2 sin 0,6π (20t - x)
=0,2 sin (12πt - 0,6πx)
=A sin (wt-kx)
W= 2π × f
12π= 2πf
6 Hz= f
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Y= 0,2 sin 0,6π (20t - x)
=0,2 sin (12πt - 0,6πx)
=A sin (wt-kx)
W= 2π × f
12π= 2πf
6 Hz= f