Предмет: Математика, автор: dimontris

Решите систему уравнений

x-y=п/3
cosx+cosy=3/2

Ответы

Автор ответа: kalaevdenis
0
я не уверен
х-у=п/3
cosx+cosy=3/2, значит х+у=3/2
х+у=3/2
х-у=п/3
сложим 
2х=15,28/6
12х=15,28
х=3,82/3
х=192/150
Ответ: 192/150.
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