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valoarea de adevăr a afirmaţiilor:
a) (3)(3)-
1)(3)(3)-27
2) (10)30 (10)77-100,
b) (2)*()-;
e) (3)(3)-1;
h) (20): (20)-400
c)
10
(3)":(3)".
18
36
1 (3): (§)"-25
D (3): (3)-5
=
81
625