What will be the sign of the probust axb if.
a is the product of 5 positive integers and b is theproduct of 9 negative integers.
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a is the product of 5 positive integers:- a*a*a*a*a=5a
b is the product of 9 negative iintegers:- -b* -b* -b* -b* -b = -5b
So, 5a* -5b = -25ab
thus, the sign of the probust a*b will be negative
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