Question

a)ø
b){x€R| x <0}
c){x€R| x > -2}
d){x€R|-2 igual x < 0}
e){x€R|-2 < x <3}

Answer 1

$A=\{x\in\,\mathbb{R}/0\le\,x\le\,3\} \\B=\{x\in\,\mathbb{R}/x\le\,3\}\\C=\{x\in\,\mathbb{R}/-2 \le \,x \le\,3\}$

$B-A=\{x\in\,\mathbb{R}/x\le0\}$

$(B-A)\cap\,C \\ =\{x\in\,\mathbb{R}/-2\le\,x\le\,0\}$

Alternativa d