El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$e^{2 x} \left(3 \sin{\left(x \right)} + 2 \cos{\left(x \right)}\right) = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = -72.8446336361128$$
$$x_{2} = -88.5525969040618$$
$$x_{3} = -13.1543732179067$$
$$x_{4} = -25.7207438322659$$
$$x_{5} = -97.9773748648312$$
$$x_{6} = -79.1278189432924$$
$$x_{7} = -57.1366703681638$$
$$x_{8} = -47.7118924073945$$
$$x_{9} = -60.2782630217536$$
$$x_{10} = -6.87118791072715$$
$$x_{11} = -10.0127805643169$$
$$x_{12} = 15.1199606644014$$
$$x_{13} = -53.9950777145741$$
$$x_{14} = -0.588002603547568$$
$$x_{15} = -44.5702997538047$$
$$x_{16} = -3.72959525713736$$
$$x_{17} = -82.2694115968822$$
$$x_{18} = -22.5791511786761$$
$$x_{19} = -32.0039291394455$$
$$x_{20} = 2.55359005004223$$
$$x_{21} = -94.8357822112414$$
$$x_{22} = -91.6941895576516$$
$$x_{23} = 5.69518270363202$$
$$x_{24} = 11.9783680108116$$
$$x_{25} = -69.703040982523$$
$$x_{26} = -41.4287071002149$$
$$x_{27} = -50.8534850609843$$
$$x_{28} = -19.4375585250863$$
$$x_{29} = -75.9862262897026$$
$$x_{30} = -28.8623364858557$$
$$x_{31} = -38.2871144466251$$
$$x_{32} = -85.411004250472$$
$$x_{33} = -66.5614483289332$$
$$x_{34} = -35.1455217930353$$
$$x_{35} = 8.83677535722181$$
$$x_{36} = -16.2959658714965$$
$$x_{37} = -63.4198556753434$$
$$x_{38} = -101.118967518421$$