Déterminer la valeur de vérité des propositions
suivantes:
P₁: (-3²-9) et (√9=-3)
P₂: ( EQ) ou (√3+√7 > 3)
Ps: (√4-2) et (√12 #3)
P₁: (a € N); (a premiera impair)
Ps: (à E. R); (a <-1⇒>a<0)
P: (a € R); (a ≥2a² ≥.4)
√a+1
P₁: (a > 1); (+1 = 2 *a = 9)
√a-1
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