Register

GATE2019: 13

• retagged by
0 votes
0 votes

Which of the following are geometric series?

  1. $1,\:6,\:11,\:16,\:21,\:26,\:\dots$
  2. $9,\:6,\:3,\:0,\:-3,\:-6,\:\dots$
  3. $1,\:3,\:9,\:27,\:81,\:\dots$
  4. $4,\:-8,\:16,\:-32,\:64,\:\dots$
  1. $P$ and $Q$ only
  2. $R$ and $S$ only
  3. $Q$ and $S$ only
  4. $P, Q$ and $R$ only
• retagged by

Please log in or register to answer this question.

Voting & Accepting an answer helps improve the community
Answer:

Related questions

0 votes
0 votes
0 answers
1
soujanyareddy13 asked Nov 3, 2020
GATE2020: 51
An infinite series $S$ is given as: $S=1+2/3+3/9+4/27+5/81+\:.\dots$ (to infinity) The value of $S$ is ______________________ (round off to $2$ decimal places).
An infinite series $S$ is given as:$S=1+2/3+3/9+4/27+5/81+\:.\dots$ (to infinity)The value of $S$ is ______________________ (round off to $2$ decimal places).
0 votes
0 votes
0 answers
2
Milicevic3306 asked Mar 26, 2018
GATE2015-33
Consider the following infinite series: $1+ r+r^2 +r^3+ \dots \dots \infty$ If $r = 0.3$, then the sum of this infinite series is ____________
Consider the following infinite series:$$1+ r+r^2 +r^3+ \dots \dots \infty$$ If $r = 0.3$, then the sum of this infinite series is ____________
–1 votes
–1 votes
0 answers
3
gatecse asked Feb 20, 2018
GATE2018-43
If $1+r + r^2+ r^3 +\dots \infty = 1.5$, then, $1 + 2r + 3r^2 + 4r^3 + \dots \infty = $ (up to two dcimal places) ________
If $1+r + r^2+ r^3 +\dots \infty = 1.5$, then, $1 + 2r + 3r^2 + 4r^3 + \dots \infty = $ (up to two dcimal places) ________
0 votes
0 votes
0 answers
4
go_editor asked Mar 1, 2021
GATE BT 2021 | Question: 20
The sum of the infinite geometric series $1 + 1/3 + 1/3^2+ 1/3^3+ \dots$ (rounded off to one decimal place) is ___________
The sum of the infinite geometric series $1 + 1/3 + 1/3^2+ 1/3^3+ \dots$ (rounded off to one decimal place) is ___________
0 votes
0 votes
0 answers
5
soujanyareddy13 asked Nov 3, 2020
GATE2019: 21
The solution of $ \underset{x\rightarrow 8 }\lim\left ( \dfrac{x^{2}-64}{x-8} \right )$ is _____________.
The solution of $ \underset{x\rightarrow 8 }\lim\left ( \dfrac{x^{2}-64}{x-8} \right )$ is _____________.
Link Copied!