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marinka31
@marinka31
July 2022
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Решить уравнение 2cos(-x/2+п/4)=-2
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eVa74
Cos(-x/2+π/4)=-1
-x/2+π/4=π+2πk
-x/2=3π/4+2πk
x=-3π/2-8πk
3 votes
Thanks 2
marinka31
почему -8пк
IUV
4*pi*k
eVa74
да согласна не туда глянула
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Answers & Comments
-x/2+π/4=π+2πk
-x/2=3π/4+2πk
x=-3π/2-8πk