Question

Given that a geometric series has first term 10 and common ratio r, where r > 0.

The sum of the first 7 terms is 3 times the sum of the 8th and 9th terms.

Prove that r^

7

(4 − 3r^

2

) = 1.​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

santoshshetty plz don't send meaning less answers only for the sake of points

hope you understand

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