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gyulia000
@gyulia000
July 2022
1
9
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вычислить sin 300градусов =
tg=(-2 П/3)=
2sinП/3 -cosП/2=
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nazarzakap
1) 300-180=120 sin120=корень из 3/2
3) 2*sin60-cos90=2*корень из 3/2-0=корень из 3
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3) 2*sin60-cos90=2*корень из 3/2-0=корень из 3