Resposta:
a)
[tex]\boldsymbol{ \sf \displaystyle Im = \{x\in\mathbb{R}\mid -\; 2\leq x \leq 2 \} } = \boldsymbol{ \sf \displaystyle [- 2, 2] }[/tex]
b)
[tex]\boldsymbol{ \sf \displaystyle Im = \bigg \{x\in\mathbb{R} \Biggm| \dfrac{1}{2} < x \leq 4 \bigg \} } = \boldsymbol{ \sf \displaystyle \bigg ]\dfrac{1}{2} \:, \: 4 \bigg] }[/tex]
c)
[tex]\boldsymbol{ \sf \displaystyle Im = \{x\in\mathbb{R}\mid 0\leq x \leq 2 \} } = \boldsymbol{ \sf \displaystyle [ 0\:,\; 2] }[/tex]
d)
[tex]\boldsymbol{ \sf \displaystyle Im = \{x\in\mathbb{R}\mid 0 < x < 3 \} } = \boldsymbol{ \sf \displaystyle ] \:0 \:,\; 3 [ }[/tex]
Explicação passo-a-passo:
