Question

A={xE|R|1<x<7}
B={XE|R|x+1|<5}​

Answer 1

1 < x < 7, x apartine (1,7)

A={2,3,4,5,6}

|x+1| < 5 sunt 2 cazuri

x+1 < 5, x < 4

x + 1 < -5, x< -6

x apartine (-6,4)

A={-5, -4, -3, -2, -1, 0, 1,2,3}