For simplicity, pretend that I have only two numbers...0 and 1. If I write the statement "begins with a 1 and ends with a 0" it could be expressed as all the numbers beginning with 1 intersection all the numbers ending with zero. Is there a way to convert this to a union expression? Thanks
2006-09-21 07:42:03 · 3 answers · asked by mdigitale 7 in Education & Reference ➔ Homework Help
n of (A union B)=n of A +n of B- n of (A intersection B)
so n of (A intersection B)=n of A+n of B-n of (A union B)
2006-09-21 07:48:00 · answer #1 · answered by raj 7 · 0⤊ 0⤋
You could say that A (intersection) B = (A^c U B^c) \ (A (symmetric difference) B) if A and B are the two sets.
^c means the compliment and \ means subtraction. This may be higher math than you're expecting or it may involve too many symbols but that's the only answer I could come up with that includes a union.
2006-09-21 07:47:43 · answer #2 · answered by khard 6 · 0⤊ 0⤋
all numbers that starts with something other than one
U
all numbers that end with something other than zero
2006-09-21 07:49:23 · answer #3 · answered by Brand X 6 · 0⤊ 0⤋