Find the formal Fourier series solutions of the endpoint value problem. x double prime plus 3 xequals1, x (0 )equalsx (pi )equals0 Type the first four non-zero terms of the Fourier series.

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.