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  • tux

I don't understand the highlighted part of solution

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hint: use of distributive property (x+y)*(w+z)= x*w + x*z + y*w + y*z does this help ?
  • tux
This is what I got after using distribution: (A∩A^c)U(A∩B^c)U(B∩A^c)U(B∩B^c) As you can see I got (A∩A^c) In solution it is (AUA^c)
@tux u are absolutely correct there is printing mistake in that step, then again next step there is correct

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Other answers:

because A∩A^c is null as shown there.
  • tux
A U A^c = U A∩A^c={} You are right. Thanks
^^ thats right too. welcome :)

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