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## Main Question or Discussion Point

How could you that

y(x,t)=ƒ(x/a + t/b),

where a and b are constants is a solution to the wave equation for all functions ,f ?

many thanks.

y(x,t)=ƒ(x/a + t/b),

where a and b are constants is a solution to the wave equation for all functions ,f ?

many thanks.