Author 
Topic 

mlg
New Member
Ireland
1 Posts 
Posted  11/14/2013 : 12:17:14

f(x) = sin(2x) + cos(2x) where x is an element of [0,pi]
Find the interval on which the function is increasing and decreasing.
Could somebody do this question for me please. 


royhaas
Moderator
USA
3059 Posts 
Posted  11/15/2013 : 11:56:45

This is a homework help site. Please read the posting rules. 


the_hill1962
Advanced Member
USA
1468 Posts 
Posted  11/19/2013 : 14:13:50

Do you know what "increasing" and "decreasing" mean? Have you made a table of values for f(0) to f()? Have you looked at a graph of f(x) in the area of the domain from 0 to ?




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