Question

Решите неравинство срочно даю 90 БАЛОВ
$16 {x}^{2} - 1 > 0$
${x}^{2} + 5.1x < 0$
$3 {x}^{2} - 11x + 6 < 0$
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Answer 1

1)

16x^2-1>0

x^2>1/16

x>1/4

2)

x^2+5.1x<0

x(x+5.1)<0

x<0

x<-5.1

x€(-~;-5.1)

3)

3x^2-11x+6<0

D=121-4×6×3=49

x1=11+7/6=3

x2=11-7/6=4/6=2/3

x€ [23;3]

Answer 2

1) и 2) неверны