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...∩A) = X . . . per ogni X falso, p.es. quando X =

**Ā**Quindi A non è elemento neutro. Più o meno allo stesso...2 Answers · Science & Mathematics · 05/09/2014

What does P(

**ā**) mean? Is that the complement of A or in other words: P...2 Answers · Science & Mathematics · 08/01/2014

Essentially the same calculation that you did, tells you that if you first fix an arbitrary constant c and let g(t) = f(t, -2t + c), then g'(t) = 0 for all t. In particular, for any t we have f(t, -2t + c) = g(t) = g(0) = f(0, c). Fixing any (x,y) in R^2, putting c = 2x + y...

1 Answers · Science & Mathematics · 05/11/2013

The overscore A:

**Ā**(I think) has traditionally been used to refer to the complement...2 Answers · Science & Mathematics · 25/10/2013

q15 use the formula P(A or B) = P(A) + P(B) - P(A & B) P(3 hearts) + P(numbers less than 5) - P(both) = (C(13,3) + C(20,3) - C(5,3))/C(52,3) = 354/5525, ≈ 6.4...

1 Answers · Science & Mathematics · 27/05/2013

...āb)+a)(a + b) = ((āb)+a)a + ((āb)+a)b = (āb)a + aa + (āb)b + ab = b(āa) + a +

**ā**(bb) + ab = b(false) + a + āb + ab = false + a + (**ā**+ a)b = a + (true)b = a + b 3...1 Answers · Science & Mathematics · 19/05/2013

here is a link : http://en.wikipedia.org/wiki/Boolean_algebra

1 Answers · Science & Mathematics · 04/11/2012

We have... (AUB) = {3, 8, 10, 11, 12} But we don't know what is set C.. Include what is inside set C, so I can assist you! Good luck!

1 Answers · Science & Mathematics · 21/10/2012

... one on the question above is correct. A ⊆

**Ā**if for an arbitrary element a of A, a is also...show 2 sets are equal you need B ⊂**Ā**and**Ā**⊂ B. The first ...3 Answers · Science & Mathematics · 09/06/2012