April 22nd, 2017, 09:47 AM  #1 
Senior Member Joined: Dec 2015 From: Earth Posts: 238 Thanks: 27  Extremum values
Find extremum value of $\displaystyle \;$$\displaystyle y=\frac{1}{2} x^2 +cosx$

April 22nd, 2017, 10:19 AM  #2 
Senior Member Joined: May 2016 From: USA Posts: 1,084 Thanks: 446 
What is the general method for finding extrema of differentiable functions? What did you get when you tried that? 
April 22nd, 2017, 11:49 AM  #3 
Math Team Joined: Jan 2015 From: Alabama Posts: 3,261 Thanks: 893 
You are not going to be able to find a simple numerical solution to , you will need some sort of numerical solution.

April 22nd, 2017, 01:05 PM  #4 
Senior Member Joined: Sep 2015 From: USA Posts: 2,037 Thanks: 1063  

Tags 
extremum, values 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Derivative at extremum  jkh1919  Calculus  3  July 24th, 2012 06:49 PM 
derivative of extremum  anigeo  Calculus  2  May 12th, 2012 06:50 AM 
Extremum search  thescratchy  Calculus  6  March 5th, 2011 06:41 PM 
Extremum  StevenMx  Calculus  3  December 16th, 2008 10:13 AM 
Find indicated absolute extremum  ArmiAldi  Calculus  1  March 8th, 2008 03:25 PM 