+0  
 
0
450
1
avatar

 

 

 

 

Help please!

 Jan 14, 2017
 #1
avatar+129839 
0

[24]r^2 = 3rd term

 

[ 32 / 3]r^4  = 5th term    .......so.....

 

24(r)^2  = 32/3    rearrange

 

 r^2    =  [32 / 3] / 24

 

r^2  = 32/72

 

r^2  = 4/9

 

r = 2/3

 

And the first term  =   24(3/2)^2  = 54

 

So... the 10th term  =  54(2/3)^9  =  1024 / 729

 

 

cool cool cool

 Jan 14, 2017

2 Online Users

avatar
avatar