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Nivika0
Nivika0
01.02.2022 19:30 •  Алгебра

4. х1, х2 являются корнями квадратного уравнения - 2х-30, на d) x1 +x2
е) х1*x2
f)1/x1* 1/x2

Показать ответ
Ответ:
Dufrenb
Dufrenb
20.03.2021 04:20
А) log по основанию 4 (sinx+2sinxcosx+16)=log 16 по основанию 4
логарифмы отбрасываем и приравниваем подлогарифмические выражения
sinx+2sinxcosx+16=16
sinx+2sinxcosx=16-16
sinx(1+2cosx)=0
sinx=0                  или                             1+2cosx=0
x=n, n∈z                              2cosx=-1
                                                               cosx=-1/2
                                                   x=(-/3)+2n
                                                   x=2/3+2n, n∈z
б)(720;-450)

x=2n, n∈z
0,0(0 оценок)
Ответ:
skymiss
skymiss
02.09.2022 12:11

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Must Waste More Time...

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