Use the supper position principle to split the heat equation into two equations you are able to solve. you do not need to solve the resulting equations. u_t = 5u_xx + sin (xt), 0 0 u(x, 0) = ln (x^2 + 5), 0

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )

do you have an easier question cause this shh is hard like theheck

step-by-step explanation:

might be the correct answer will be question number 2