Question

True or false:
If ab>0 then a>0 and b>0.

Answer 1

False

Explanation:

You don't know what a or b is for example it could be a=-3 b=-4. In that case ab= 12 but a and b indavidually are less than zero making this statment false

Answer 2

false

Explanation:

because a<0 and b<0 then ab>0