The wave equation u_tt = u_xx , is given in the range t > 0 , x∈ |0, π| , with Dirichlet boundary conditions, u(0, t) = 0 , u( π ,t) = 0 . a. Find the general solution of the problem.
b. Identify the particular solution obeying the initial conditions:
u(x,0) = sin(x) , u_t( x ,0) = 2sin(x) - 3sin(2x)

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it

m=-16

step-by-step explanation: