Toronto Math Forum
APM3462020S => Quizzes and Tests => Test 1 => Topic started by: Yan Zhou on February 21, 2020, 12:18:28 PM

I think there are some typo in the answer of u(x,t).
$$u(x,t) = 6sin(x+3t) + 6sin(x3t) $$ as $x>3t$,
$$u(x,t) = 6sin(x+3t) + 6sin(2(x3t))$$ as $t<x<3t$.