Sample Beat Frequencies

Plot (sin(x),x = -50..50)

Maple plot.

Plot (sin(1.05*x),x = -50..50)

Maple plot.

Plot (sin(x) + sin(1.05*x),x = -50..50)

Maple plot.

Plot (sin(x) + sin(1.05*x),x = -250..250)

Maple plot.