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)

The equation of a circle is (x - 3)2 + (y - 7)2 = 25. determine the length of the radius. 4 25 12.5 5 write the standard equation of the circle with center (2, 3) and a diameter of 12. (x - 2)2 + (y - 3)2 = 36 (x + 2)2 + (y + 3)2 = 12 (x - 2)2 + (y - 3)2 = 6 (x - 3)2 + (y - 2)2 = 36 the equation of a circle is (x + 3)2 + (y + 7)2 = 25. where is (3, 4) located in relation to the circle? on the circle in the interior of the circle in the exterior of the circle at the center of the circle

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

3.4a=57.8 what is the the value of a