Question

what will be the sign of product a x b if a is the product of 5 positive integers and b is a product of 9 negative integers​

Answer 1

Answer:

Negative

Step-by-step explanation:

product of +ve integer is always positive.

And product of negative integer in odd no.is -ve .

So a×b=+ve×-ve=-ve

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Answer 2

Answer:

a x b gives negative value.

Step-by-step explanation:

Given: a is the product of 5 positive integers and b is a product of 9 negative integers​.

To determine sign of a x b.

By sign rule we know that product of any number of positive integers always give positive value and product of even number of negative sign gives positive value while odd gives negative sign.

So, $a$ gives positive value and $b$ gives negative value.

$a*b=(+)(-)$ which by sign rule gives negative value.

Hence a x b gives negative value.

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