+0  
 
0
42
1
avatar+50 

Pls help 

 Feb 18, 2019
 #1
avatar+98126 
+2

The first isn't as difficult as it seems

 

f(3) + f(-3) =

 

[ 12(3)^9 + 3 ] + [ 12(-3)^9 - 3] =

 

[ 12(3)^9 + 12(-3)^9] +  [3 - 3 ] =

 

[ 0 ]   + [ 0] =

 

0

 

Second one

 

[-3, 7)

 

 

Last one

 

 

cool cool cool

 Feb 18, 2019
edited by CPhill  Feb 18, 2019

7 Online Users