Răspuns:
Explicație pas cu pas:
[tex]x > -5\\x + 5> - 5 + 5 \\x + 5 > 0\\\sqrt{(x+5)^2} = |x + 5 | = x + 5\\\\x < 3\\x -3 < 3 - 3 \\x -3 < 0\\\sqrt{(x-3)^2} = |x -3 | = 3 - x\\\\\sqrt{(x+5)^2} + \sqrt{(x-3)^2} = x + 5 + 3 - x = 8[/tex]
a = 8 ∈ N , ∀ x ∈ (-5 , 3)
