El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\sin{\left(5 - 2 x \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = \frac{5}{2}$$
$$x_{2} = \frac{\pi}{2} + \frac{5}{2}$$
Solución numérica$$x_{1} = 19.7787595947439$$
$$x_{2} = -39.9115008234622$$
$$x_{3} = 33.9159265358979$$
$$x_{4} = 60.6194640914112$$
$$x_{5} = 99.8893722612836$$
$$x_{6} = -30.4867228626928$$
$$x_{7} = 63.761056745001$$
$$x_{8} = -74.4690200129499$$
$$x_{9} = -71.3274273593601$$
$$x_{10} = -85.4645943005142$$
$$x_{11} = -98.0309649148734$$
$$x_{12} = -99.6017612416683$$
$$x_{13} = -93.3185759344887$$
$$x_{14} = 92.0353906273091$$
$$x_{15} = 27.6327412287183$$
$$x_{16} = 32.345130209103$$
$$x_{17} = -16.3495559215388$$
$$x_{18} = -55.6194640914112$$
$$x_{19} = 82.6106126665397$$
$$x_{20} = 104.601761241668$$
$$x_{21} = 11.9247779607694$$
$$x_{22} = 38.6283155162826$$
$$x_{23} = 98.3185759344887$$
$$x_{24} = -38.3407044966673$$
$$x_{25} = 70.0442420521806$$
$$x_{26} = 57.4778714378214$$
$$x_{27} = -61.9026493985908$$
$$x_{28} = 55.9070751110265$$
$$x_{29} = -5.35398163397448$$
$$x_{30} = -27.345130209103$$
$$x_{31} = 5.64159265358979$$
$$x_{32} = 90.4645943005142$$
$$x_{33} = -46.1946861306418$$
$$x_{34} = -77.6106126665397$$
$$x_{35} = -2.21238898038469$$
$$x_{36} = 10.3539816339745$$
$$x_{37} = 96.7477796076938$$
$$x_{38} = -25.7743338823081$$
$$x_{39} = -82.3230016469244$$
$$x_{40} = -54.0486677646163$$
$$x_{41} = -41.4822971502571$$
$$x_{42} = -24.2035375555132$$
$$x_{43} = 26.0619449019235$$
$$x_{44} = -69.7566310325652$$
$$x_{45} = 85.7522053201295$$
$$x_{46} = -47.7654824574367$$
$$x_{47} = 41.7699081698724$$
$$x_{48} = 76.3274273593601$$
$$x_{49} = -8.49557428756428$$
$$x_{50} = -60.3318530717959$$
$$x_{51} = 2.5$$
$$x_{52} = -52.4778714378214$$
$$x_{53} = -11.6371669411541$$
$$x_{54} = 18.207963267949$$
$$x_{55} = -10.0663706143592$$
$$x_{56} = 52.7654824574367$$
$$x_{57} = -17.9203522483337$$
$$x_{58} = 48.053093477052$$
$$x_{59} = 35.4867228626928$$
$$x_{60} = 4.0707963267949$$
$$x_{61} = -63.4734457253857$$
$$x_{62} = 40.1991118430775$$
$$x_{63} = 71.6150383789755$$
$$x_{64} = -28.9159265358979$$
$$x_{65} = 24.4911485751286$$
$$x_{66} = 62.1902604182061$$
$$x_{67} = -68.1858347057703$$
$$x_{68} = -96.4601685880785$$
$$x_{69} = -32.0575191894877$$
$$x_{70} = 68.4734457253857$$
$$x_{71} = 54.3362787842316$$
$$x_{72} = -3.78318530717959$$
$$x_{73} = 84.1814089933346$$
$$x_{74} = -76.0398163397448$$
$$x_{75} = 16.6371669411541$$
$$x_{76} = -49.3362787842316$$
$$x_{77} = 74.7566310325652$$
$$x_{78} = -19.4911485751286$$
$$x_{79} = -91.7477796076938$$
$$x_{80} = 13.4955742875643$$
$$x_{81} = -90.1769832808989$$
$$x_{82} = -83.8937979737193$$
$$x_{83} = 49.6238898038469$$
$$x_{84} = 77.898223686155$$
$$x_{85} = 93.606186954104$$
$$x_{86} = -33.6283155162826$$
$$x_{87} = 46.4822971502571$$