Asked by Daniel

In a geometric progression the 3rd term is 4 times the 1st term and the sum of the 2nd term and the 4th term is 30. Find the positive common ratio, the first term, and sum of the first 7 terms
Answered by R_scott
r^(3 - 1) = 4 ... r = 2

2nd term ... t + 4 t = 30 ... t = 6

1st term ... 6 / 2 = ?

write the 1st seven terms and sum them
Answered by [email protected]
4
Answered by [email protected]
3
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