¿Cuántos números distintos y cuáles son los que se pueden escribir con los dígitos 1, 2, 3 y 4 sin repetir las cifras? (números de 2, 3 y 4 cifras)
Respuestas
Respuesta:
2 cifras: 12,13,14,21,23,24,31,32,34,41,42,43 y 3 cifras: 123,124,132,134,142,143,213,214,231,234,312,314,321.324.341.342.412.413.421.423,431,432
Explicación paso a paso:
Respuesta:208 números distintos y son;
11,12,13,14,21,22,23,24,31,32,33,34,41,42,43,44,111,112,113,114,121,122,123,124,131,132,133,134,141,142,143,144,211,212,213,214,221,222,223,224,231,232,233234,241,242,243,244,311,312,313,314,321,322,323,324331,332,333,334,341,342,343,344,411,412,413,414,421,422423,424,431,432,433,434,441,442,443,444,1111,1112,1113,1114,1121.1122.1123.1124.1131.1132.1133.1134.1141.1142.1143.1144.2111,212.1213.
1214.1221.1222.1223.1224.1231.1232.1233.1234.1241.1242.1243.1244.1311,1312,
1313,1314,1321,1322,1323,1324,1331,132,1333,1334,1341,1342,1343,1344,1411,1412,1413,1414,1421,1422,1423,1424,1431,1432,1433,1434,1441,1442,1443,
,1444,2111,2112,2113,2114,2121,2122,2123,2134,2131,2132,2133,2134,2134,2141,
2142,2143,2211,2212,2213,2214,2221,2222,2223,2224,2231,2232,2233,2234,
2311,2312,2313,2314,2321,2322,2323,2324,2331,2332,2333,2334,2341,2342,
2343,2344,2341,2342,2343,2344,,2411,2412,2413,24142421,2422,2423,2424,2431,2432,2433,2434,2441,2442,2443,2444
Explicación paso a paso: