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the 4th term in a geometric sequence is -15, the 5th term is 45 and the 6th term...
Mathematics, 09.10.2019 19:40 zel117
Explain
the 4th term in a geometric sequence is -15, the 5th term is 45 and the 6th term is -135. find the sum of the first 7 terms.
a) -105
b) -101 1/9
c) 305
d) 303 8/9
Answers: 2
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