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Which of the following is not true? p+q = q+p p x q = q x p p x (q x r)=(p x q ) x r p - q = q - p Plz answer my exam is going on right now

Which of the following is not true? p+q = q+p p x q = q x p p x (q x r)=(p x q ) x r p - q = q - p Plz answer my exam is going on right now
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3 votes
Which of the following is not true?

p+q = q+p
p x q = q x p
p x (q x r)=(p x q ) x r
p - q = q - p



Plz answer my exam is going on right now

User Hywak
by
8.1k points

1 Answer

5 votes

Explanation:

the number 4 is false

p-q =-(q-p)

User Dikkini
by
8.1k points
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