Find the sum to indicated number of terms in each of the geometric progressions in Exercises 7 to 10: 9. 1

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Find the sum to indicated number of terms in each of the geometric progressions in Exercises 7 to 10: 9. 1, – a, a^2 , – a^3 , … n terms (if a ≠ – 1).
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Oct
Find the sum to indicated number of terms in each of the geometric progressions in Exercises 7 to 10: 9. 1, – a, a^2 , – a^3 , … n terms (if a ≠ – 1). ... n terms (if a ≠ – 1). a^3 A) a2 Find the sum to indicated number of terms [...]
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