It is known that ab < 0 is the absolute value of a divided by a plus the absolute value of B divided by B plus the absolute value of a times b divided by a times B?

It is known that ab < 0 is the absolute value of a divided by a plus the absolute value of B divided by B plus the absolute value of a times b divided by a times B?

Known, AB < 0
What is the absolute value of a divided by a plus the absolute value of B divided by B plus the absolute value of a times b divided by a times B?
=1-1-1
=-1；
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