2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49003We propose new formulas for extracting a difference of the polarized light sea-quark density, $Δ\bar d(x)-Δ\bar u(x)$, from polarized deep-inelastic semi-inclusive data. We have estimated the value of it from the present experimental data measured by SMC and HERMES groups. Although the data might suggest a violation of polarized light flavor sea-quark symmetry, the precision of the present data is not enough for confirming it.8 pages + 1 figure, LaTeX fileHigh Energy Physics - Phenomenologytext