Processing Math: Done
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing button on the jsMath control panel.

No jsMath TeX fonts found -- using image fonts instead.
These may be slow and might not print well.
Use the jsMath control panel to get additional information.
jsMath Control PanelHide this Message


jsMath

Solution 2.3:6a

From Förberedande kurs i matematik 1

Revision as of 10:51, 21 September 2008 by Ian (Talk | contribs)
Jump to: navigation, search

Using the squaring rule, we recognize the polynomial as the expansion of x12 ,


x22x+1=x12 


This quadratic expression has its smallest value, zero, when x1=0, i.e. x=1. All non-zero values of x1 give a positive value for x12 .

NOTE: If we draw the curve y=x12 , we see that it has a minimum value of zero at x=1.