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MrSaint
@MrSaint
August 2022
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Помогите решить arccos(x+1)/3=2pi/3
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zarembo73
arccos(x+1)/3=2
π
/3;
arccos(x+1)=2
π
;
cos 2
π=x+1;
Так как cos 2
π=1,
то
x+1=1;
x=1-1;
x=0.
Ответ: 0.
4 votes
Thanks 7
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Answers & Comments
arccos(x+1)=2π;
cos 2π=x+1;
Так как cos 2π=1, то
x+1=1;
x=1-1;
x=0.
Ответ: 0.