Saturday

October 25, 2014

October 25, 2014

Posted by **Jean** on Wednesday, July 18, 2012 at 6:05pm.

- Business Calculus -
**bobpursley**, Wednesday, July 18, 2012 at 6:25pmf(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.

- Business Calculus -
**Justin**, Wednesday, July 25, 2012 at 3:56amnever mind

**Answer this Question**

**Related Questions**

Calculus - find the intervals where the function is increasing and the intervals...

Calculus - Consider the function f(x) = x - lnx. Find the intervals on which f(x...

Engineering Calculus - f(x)=((6x-3)/(x+6)) how do you find the intervals of ...

Calculus - Use any calculus method to determine extrema, intervals where the ...

Calculus.......plz help! =) - Use any calculus method to determine extrema, ...

Pre-Calculus - Determine the open intervals on which the function is increasing...

Calculus - Find the intervals on which the given function is increasing and ...

calculus - Given f(x)=sin(x)-2cos(x) on the interval [0,2pi]. a) Determine where...

Calculus - Consider f(x)=200+8x^3+x^4. find the intervals on which function is ...

Math - What is the domain? Use a graphing utility to determine the intervals in ...