Question 661422
im giving the below function and im asked to find the domain and the intervals where f(x)>0. 
f(x)=(e^x-1)ln(x)>0
e^x-1>0
e^x>1
domain: (0,∞)
you can see this if you graph the e^x curve
..
ln(x)>0
domain: (1,∞)
you can see this if you graph the ln(x) curve
..
number line for f(x)
<.......0.......1===>
Domain of f(x) is (1,&#8734;)
Domains of e^x and ln(x) must overlap