2+5/72 + 5/72+5/7^2 14 = (14/7+5/7)2(14/7 + 5/7)^2(14/7+5/7)2 14 = 19/719/719/7^2 14 = 361/49361/49361/49 14 = 361 * 2 = 722.
Ответ: 722.
2+5/72 + 5/72+5/7^2 14 = (14/7+5/7)2(14/7 + 5/7)^2(14/7+5/7)2 14 = 19/719/719/7^2 14 = 361/49361/49361/49 14 = 361 * 2 = 722.
Ответ: 722.