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Ответ

Ответ дан
taisasnitko

обл. определения найдем из условия

8+10х-3х²>0

3x²-10x-8<0,  D=100+3·8·4=196,√D=14, x1=4,x2=- 2/3

-+----°--------------°-----+--

    -2/3       4

x∈(-2/3;4)

Ответ

Ответ дан
MeDi0N
D(y)=(-2/3; 4)...........

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