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rigfu
@rigfu
July 2022
1
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решите уравнение
cos² 2x = 1
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Сабина1994
Cos^2x=1
2x=2пк
x= пк -------------------
2 votes
Thanks 1
rigfu
что значит пк
Сабина1994
то есть пn
n= число
rigfu
Спасибо
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Answers & Comments
2x=2пк
x= пк -------------------
n= число