Asked by FBI

If 7 and 189 are the first and fourth terms of a geometric respectively, find the sum of the first three terms of the progression?

6 years ago

Answered by R_scott

7 r^3 = 189 ... r^3 = 27 ... r = 3

7 + 21 + 63 = ?

6 years ago

Answered by Chidera

3 years ago

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