Consider the wave equation for the infinite string on the entire real line    utt − uxx = 0 x ∈ R, t > 0 u(x, 0) = 0 ut(x, 0) = ψ(x) with ψ(x) = ( 0, x ≤ 4 1, 4 < x. Find the values of u(t, x) for all (t, x) and write down the answers on the regions of the (t, x)-plane. (4 pts) Draw the profile of the string at times t = 2 and t = 4. (2 pts)

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to

step-by-step explanation:

c is the correct answer

step-by-step explanation: