А)F (x) = 3x + 5.f(2)=3*2+5=11f(0)=5f(-4)=-4*3+5=-7<span>б) х=1/3 F(x)= F(1/3)=3*1/3+5=6 наверно так
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1/(1+x^2)=x^2/2
(2-x^4-x^2)/(2(1+x^2))
x^4+x^2-2=0
x1=2
x2=1
1) 89*9-88:8= 801-11= 790
2) 85*5+43*8= 425+344= 769
3) 28*7-99:3= 196-33= 163
4) 738*6-13*8= 4428-104= 4324
X + 463853 = 783 × 4647
x + 463853 = 3638601
x = 3638601 - 463853
<span><em><u>x = 3174748</u></em></span>
Это до 30 а так больше 11, 13, 15, 17, 19, 20, 22, 24, 26, 28 - 10 чисел.