Ajutor va rog!!! Ofer coroana (Ex 1 din 4)

Explicație pas cu pas:

A={x apartine R | -3 < 1-2x < 11}

-3 < 1-2x < 11 /-1

-4 < -2x < 10 /:(-2)

2 > x > -5 => x aparține (-5 , 2)

A intersectat N = { -4,-3,-2,-1,0,1 }

B={x apartine R | 1/2 <(=) x+2/6 <(=) 5/3}

[tex] \frac{1}{2} \leqslant \frac{x + 2}{6} \leqslant \frac{5}{3} \\ 3 \leqslant x + 2 \leqslant 10 \\ 1 \leqslant x \leqslant 8 [/tex]

=> x apartine [1,8]

A intersectat B = [1,2)