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A pair of simple wave equations is presented for the symmetric gravitationaland electromagnetic perturbations of a charged black hole. One of the equationsis uncoupled, and the other has a source term given by the solution of thefirst equation. The derivation is presented in full detail for either axiallysymmetric or stationary perturbations, and is quite straightforward. Thisresult is expected to have important applications in astrophysical models.Comment: 4 page

Letter: Wave Equations for the Perturbations of a Charged Black Hole