a)
S = {-3; 3}
b)
S = {-3; 3}
c)
S = {-2; 2}
d)
S = {-3; 3}
e)
S = {-7/2; 7/2}
f)
S = {-4/3; 4/3}
g)
S = { }
h)
S = {-√5/3, √5/3}
i)
S = {0; 3}
j)
S = {0; 2}
k)
S = {2; -3}
l)
S = { 2; 6}
m)
S = {3/2}
n)
S = {1/3; 3}
