Question

(a) MUN (b) MnN (c) (SnN) (d) M'nN

Answer 1

a)

$M \cup N = \left \{ x | 2 <x < 12 \right \}{}$

b)

$M \cap N = \left \{ x | 4 <x <6 \right \}{}$

c)

$(S \cap N)^{'} = \left \{ x| x \leq 4 , x \geq 12 \right \}$

x <= 4 or x >= 12

d)

$(M ^{'} \cap N^{'}) = U - { (M \cup N)}$

here U is universal set

x <= 2 or x >= 12

$(M ^{'} \cap N^{'}) = \left \{ x| x \leq 2 , x \geq 12 \right \}$