SOLUTION: the answer of a sum is given. write the sum that was asked in sigma notation 8191.5 = 3/2(4^n-1) _________

SOLUTION: the answer of a sum is given. write the sum that was asked in sigma notation 8191.5 = 3/2(4^n-1) __________ 3

Question 1017122: the answer of a sum is given. write the sum that was asked in sigma notation
8191.5 = 3/2(4^n-1)
__________
3
Answer by Edwin McCravy(20056) (Show Source): You can put this solution on YOUR website!

Write the denominator 3 as 4-1



Compare to the sum formula for a geometric series:

 

, 

Also solve for n



Multiply both sides by 3



Multiply both sides by 2



Divide both sides by 3











Substitute in 





Edwin

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