At superimposition:

y_{1} + y_{2} = (3.0cm)cos(4.0x-1.6t) + (4.0cm)sin(5.0x-2.0t)

**(a) **At x = 1.00 and t = 1.00

Two waves in one string are described by the wave functions:

y_{1} = (3.0cm) cos(4.0x-1.6t)

y_{2} = (4.0cm) sin(5.0x-2.0t)

where y and x are in centimeters and t is inseconds. Find the superposition of the waves y_{1}+y_{2} at the points (a) x=1.00, t=1.00; (b) x=1.00, t=.500; and (c) x= 0.500, t=0.