SOLUTION: The first term of a geometric sequence is 1/1024 and the common ratio are 1/4
a) find the first term
b)Find the sum of the first 15 terms.
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Question 999294: The first term of a geometric sequence is 1/1024 and the common ratio are 1/4
a) find the first term
b)Find the sum of the first 15 terms.
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
a) First term (1/1024)
b) Sum of the first 15 terms:-
= a( 1 - r^n/1- r)
= 1/1024( 1 - (1/4)^15/ 1 - (1/4))
= 1.3 x 10^-3
Hope this helps :-)
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