Предмет: Алгебра, автор: Remelly

графически решите уравнение 2 cos pi x = |x - 1| + |x-3|

Ответы

Автор ответа: nafanya2014
0
2cosπx=2
cosπx=1
πx=2πk, k∈Z
x=2k, k∈z

при k=1  x=2; y=2.

О т в е т. х=2; у=2
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