Răspuns :
1) a) F
b A
c F
d F
2) A= [-6,8)
B=(-infinit, 3]
C= (-3, 1)
D= (2,infinit)
E = [1/2, 5/3]
F= (-infinit, -0,(3))
-6 </ 2x < 8/:2
-3 </ x < 4 deci G =[-3, 4)
3) (2,3]
(-infinit, infinit) = R
multime vida
(-2, -1/3] ∩ [-3, 1] = (-2, -1/3]
(-4,0)