El gráfico de la función cruce el eje T con f = 0
o sea hay que resolver la ecuación:
$$2 \sin{\left(t \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje T:
Solución analítica$$t_{1} = 0$$
$$t_{2} = \pi$$
Solución numérica$$t_{1} = 62.8318530717959$$
$$t_{2} = -50.2654824574367$$
$$t_{3} = 47.1238898038469$$
$$t_{4} = 84.8230016469244$$
$$t_{5} = -53.4070751110265$$
$$t_{6} = 91.106186954104$$
$$t_{7} = -84.8230016469244$$
$$t_{8} = -2642.07942166902$$
$$t_{9} = 25.1327412287183$$
$$t_{10} = -3.14159265358979$$
$$t_{11} = -6.28318530717959$$
$$t_{12} = -40.8407044966673$$
$$t_{13} = -18.8495559215388$$
$$t_{14} = 78.5398163397448$$
$$t_{15} = -75.398223686155$$
$$t_{16} = -9.42477796076938$$
$$t_{17} = 72.2566310325652$$
$$t_{18} = -43.9822971502571$$
$$t_{19} = 31.4159265358979$$
$$t_{20} = 9.42477796076938$$
$$t_{21} = -267.035375555132$$
$$t_{22} = 40.8407044966673$$
$$t_{23} = -69.1150383789755$$
$$t_{24} = 12.5663706143592$$
$$t_{25} = 87.9645943005142$$
$$t_{26} = 59.6902604182061$$
$$t_{27} = -37.6991118430775$$
$$t_{28} = -100.530964914873$$
$$t_{29} = -91.106186954104$$
$$t_{30} = 97.3893722612836$$
$$t_{31} = 0$$
$$t_{32} = -12.5663706143592$$
$$t_{33} = -78.5398163397448$$
$$t_{34} = -232.477856365645$$
$$t_{35} = 18.8495559215388$$
$$t_{36} = -94.2477796076938$$
$$t_{37} = 34.5575191894877$$
$$t_{38} = -113.097335529233$$
$$t_{39} = 43.9822971502571$$
$$t_{40} = -31.4159265358979$$
$$t_{41} = -81.6814089933346$$
$$t_{42} = -65.9734457253857$$
$$t_{43} = 75.398223686155$$
$$t_{44} = 56.5486677646163$$
$$t_{45} = 3.14159265358979$$
$$t_{46} = 15.707963267949$$
$$t_{47} = -56.5486677646163$$
$$t_{48} = -21.9911485751286$$
$$t_{49} = 50.2654824574367$$
$$t_{50} = -15.707963267949$$
$$t_{51} = 28.2743338823081$$
$$t_{52} = 94.2477796076938$$
$$t_{53} = -59.6902604182061$$
$$t_{54} = -62.8318530717959$$
$$t_{55} = 69.1150383789755$$
$$t_{56} = -34.5575191894877$$
$$t_{57} = -97.3893722612836$$
$$t_{58} = 21.9911485751286$$
$$t_{59} = 65.9734457253857$$
$$t_{60} = 37.6991118430775$$
$$t_{61} = -87.9645943005142$$
$$t_{62} = -72.2566310325652$$
$$t_{63} = -25.1327412287183$$
$$t_{64} = -28.2743338823081$$
$$t_{65} = 81.6814089933346$$
$$t_{66} = 6.28318530717959$$
$$t_{67} = 100.530964914873$$
$$t_{68} = 53.4070751110265$$
$$t_{69} = -47.1238898038469$$