Question

[Cihce]

a) (-12; 3] ∩ [-1; 4] ;         b) (4; 7) ∩ (-7; -4)

c) (2; 3) ∩ [3; 5) ;         d) (-∞; 2] ∩ [-2; +∞)

Answer 1

[Nguyễn Hoàng Minh]

\(a,=\left[-1;3\right]\\ b,=\left(4;7\right)\\ c,=\varnothing\\ d,=\left[-2;2\right]\)