APM346--2020S > Test 1
past test 2019 day problem 3B
(1/1)
Yan Zhou:
I think there are some typo in the answer of u(x,t).
$$u(x,t) = 6sin(x+3t) + 6sin(x-3t) $$ as $x>3t$,
$$u(x,t) = 6sin(x+3t) + 6sin(2(x-3t))$$ as $t<x<3t$.
Navigation
[0] Message Index
Go to full version