El gráfico de la función cruce el eje T con f = 0
o sea hay que resolver la ecuación:
$$e^{- 10 t} \left(2 \sin{\left(10 t \right)} + 2 \cos{\left(10 t \right)}\right) = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje T:
Solución analítica$$t_{1} = - \frac{\pi}{40}$$
Solución numérica$$t_{1} = 98.2533102410208$$
$$t_{2} = 28.1957940659684$$
$$t_{3} = 92.2842841992002$$
$$t_{4} = 84.4303025652257$$
$$t_{5} = 33.8727150747592$$
$$t_{6} = 14.3727863901733$$
$$t_{7} = 8.4037603483527$$
$$t_{8} = 66.2090651744049$$
$$t_{9} = 86.3152581573796$$
$$t_{10} = 74.3772060737383$$
$$t_{11} = 78.7754357887641$$
$$t_{12} = 26.3108384738145$$
$$t_{13} = 10.2887159405066$$
$$t_{14} = 96.3683546488669$$
$$t_{15} = 68.4081800319178$$
$$t_{16} = 60.2400391325843$$
$$t_{17} = 88.2002137495334$$
$$t_{18} = 50.1869426410969$$
$$t_{19} = 2.43473430653209$$
$$t_{20} = 52.3860574986098$$
$$t_{21} = 100.452425098534$$
$$t_{22} = -1.64933614313464$$
$$t_{23} = 80.346232115559$$
$$t_{24} = 72.1780912162255$$
$$t_{25} = 94.1692397913541$$
$$t_{26} = 90.3993286070463$$
$$t_{27} = 36.3639349653019$$
$$t_{28} = 46.4170314567892$$
$$t_{29} = 44.2179165992763$$
$$t_{30} = 6.20464549083984$$
$$t_{31} = 18.771016105199$$
$$t_{32} = 12.1736715326604$$
$$t_{33} = 54.2710130907637$$
$$t_{34} = 48.3019870489431$$
$$t_{35} = 24.4258828816606$$
$$t_{36} = 30.3949089234812$$
$$t_{37} = 40.4480054149686$$
$$t_{38} = 0.235619449019234$$
$$t_{39} = 64.324109582251$$
$$t_{40} = 76.2621616658922$$
$$t_{41} = 22.2267680241478$$
$$t_{42} = 20.3418124319939$$
$$t_{43} = 38.2488905574557$$
$$t_{44} = 57.0984464789945$$
$$t_{45} = 4.31968989868597$$
$$t_{46} = 42.3329610071225$$
$$t_{47} = 62.4391539900971$$
$$t_{48} = 32.2798645156351$$
$$t_{49} = 70.2931356240716$$
$$t_{50} = 82.2311877077128$$
$$t_{51} = 16.2577419823272$$
$$t_{52} = 58.3550835404304$$