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Help #12

NotSoSmart  Mar 12, 2018
 #1
avatar+88871 
+1

a.   -4+  (-4/3) +  (-4/9) +  (-4/27)

b. converges......l r l < 1      ⇒   { r  = 1/3 }

c.  The sum is

 

   -4                    -4

_____      =      ____    =     -4 * (3/2)   =   -6

1 - 1/3                2/3

 

EDIT TO CORRECT AN ERROR  !!!

 

cool cool cool

CPhill  Mar 12, 2018
edited by CPhill  Mar 12, 2018
 #2
avatar+12727 
+1

Slight typo in CP's last answer   

 

SUM  :    -4 * 3/2 = -6

ElectricPavlov  Mar 12, 2018
 #3
avatar+88871 
0

Thanks, EP.....multiplication always caused me problems....LOL!!!

 

 

cool cool cool

CPhill  Mar 12, 2018
 #4
avatar+12727 
+1

Wow!   NOTHING ELSE seems to be troublesome for ya !!!   cheeky

ElectricPavlov  Mar 12, 2018

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