List questions from geometric-series

Published on 22 Mar 2026 - 13:16

58

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Geometric Sum and Convergence

Published on 13 Aug 2019 - 15:03

248

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Find the value of $n$ so that $\frac{a^{n+1}+b^{n+1}}{a^n+b^n}$ may be the geometric mean between $a$ and $b$

Published on 15 Aug 2019 - 10:51

856

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How to prove 1111......11 (91 digits) is a prime or composite number?

Published on 22 Mar 2026 - 16:21

63

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Alternate soultion for solving an inequality

Published on 22 Aug 2019 - 6:23

222

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Using the Geometric Series to find where a series converges

Published on 28 Aug 2019 - 20:58

86

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Determing which term of the geometric sequence a number is equal to

Published on 29 Aug 2019 - 9:02

489

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Sum of geometric sequence starting from $m$-th term

Published on 02 Sep 2019 - 20:23

177

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Assumptions for sum of geometric series' derivation?

Published on 04 Sep 2019 - 18:13

60

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$\sum_{k=1}^{k=\infty} \frac{z^{k+x}}{k+x}$ = what?

Published on 09 Sep 2019 - 4:07

53

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Exponential formula with decreasing multiplication factor

Published on 25 Mar 2026 - 6:57

50

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If $1+\cos\alpha+\cos^2\alpha+\cos^3\alpha......\infty = 2- \sqrt 2$, then $ \alpha$ =? $(0<\alpha<\pi)$

Published on 11 Sep 2019 - 17:21

46

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The value of $a^{\log_b x}$ where

Published on 11 Sep 2019 - 17:27

896

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Geometric Series $\sum_{k=0}^{\log_{2}n}\frac{n}{2^k}$

Published on 12 Sep 2019 - 13:40

76

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How to prove this property?

Published on 14 Sep 2019 - 11:26

List Question

Show that $7a^{2} = 13b^{2}$

Geometric Sum and Convergence

Find the value of $n$ so that $\frac{a^{n+1}+b^{n+1}}{a^n+b^n}$ may be the geometric mean between $a$ and $b$

How to prove 1111......11 (91 digits) is a prime or composite number?

Alternate soultion for solving an inequality

Using the Geometric Series to find where a series converges

Determing which term of the geometric sequence a number is equal to

Sum of geometric sequence starting from $m$-th term

Assumptions for sum of geometric series' derivation?

$\sum_{k=1}^{k=\infty} \frac{z^{k+x}}{k+x}$ = what?

Exponential formula with decreasing multiplication factor

If $1+\cos\alpha+\cos^2\alpha+\cos^3\alpha......\infty = 2- \sqrt 2$, then $ \alpha$ =? $(0<\alpha<\pi)$

The value of $a^{\log_b x}$ where

Geometric Series $\sum_{k=0}^{\log_{2}n}\frac{n}{2^k}$

How to prove this property?

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