Business Calculus
posted by Jean .
Determine the intervals where f(x)=e^x^2/2 is increasing and decreasing

f(x) is increasing when f'(x)>0
ln(f)=x^2/2 * e^(x^2/2)
take the derivative.
f'/f(x)=e^(x^2/2)( x)=xe^ ( )
then f'=xe^ ( ) * e^( )= xe^(x^2)
check that.
so when x>0, f(x) is increasing. 
never mind