My Math Forum Extremum values

 Calculus Calculus Math Forum

 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 $x= sin(x)$, 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

Quote:
 Originally Posted by Country Boy You are not going to be able to find a simple numerical solution to $x= sin(x)$, you will need some sort of numerical solution.
In general I'd agree but here $x=0$ does the job nicely and is in fact the only solution.

 Tags extremum, values

 Thread Tools Display Modes Linear Mode

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

 Contact - Home - Forums - Cryptocurrency Forum - Top