2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61327The normalized Yamada polynomial is a polynomial invariant in variable A for theta-curves. In this work, we show that the coefficients of the power series obtained from this polynomial by the substitution A=e^x=1+x+x^2/2+x^3/6+... are finite-type invariants for theta-curves although the coefficients of original polynomial are not. A similar result can be obtained in the case of Yokota polynomial for theta-curves.9 pages, 4 figures, Knots 2000 Korea, YongpyongGeometric Topology57M15; 05C10text