Question

2
=
?
Solved Problems
roblem 1: Ify = e-i (cst – ks)
, show that
o²y k² a²y
ax w? at
Solution :
-i (@t-kx)
y = e
ду
a
[e-i (ot – kx)
дх дх
ду
at - )
=
e​

Answer 1

type in order.....................