Х1=-1
х2=-1 1/3
3х²+bx+c=0
x1+x2=-b/3
x1*x2=c/3
1 1/3=c/3
4/3=c/3
c=4
-1-1 1/3=-b/3
-7/3=-b/3
b=7
2.......................)
У=7/х .второй ответ.
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B1q-b1=3/4 b1(q-1)=3/4
b1q^3-b1q^2=3/196 b1q^2(q-1)=3/196
(3/196)*(4/3)=q^2
1/49=q^2
q=1/7 q=-1/7
q-1=-6/7 q-1=-8/7
b1=-(3/4)*(7/6)=-7/8 b1=-(3/4)*(8/7)=-6/7