In discrete mathematics topic Generating functions. [on hold]
Find the coefficient of x^20 in $$frac{1}{(1+x)(1-x)^3}$$
How to solve sum of r=0 to r=20 in equation
$$sum_{r=0}^{20} (-1)^r*(r+2)*(r+1)$$
discrete-mathematics
New contributor
put on hold as off-topic by Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John yesterday
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If this question can be reworded to fit the rules in the help center, please edit the question.
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Find the coefficient of x^20 in $$frac{1}{(1+x)(1-x)^3}$$
How to solve sum of r=0 to r=20 in equation
$$sum_{r=0}^{20} (-1)^r*(r+2)*(r+1)$$
discrete-mathematics
New contributor
put on hold as off-topic by Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John
If this question can be reworded to fit the rules in the help center, please edit the question.
Find the coefficient of $x^{20}$ ... in what?
– Lord Shark the Unknown
yesterday
(1/(1+x))*(1/(1-x)^3) @LordSharktheUnknown
– Shubham Pradhan
yesterday
The generic answer to your first question is "partial fractions". Please see math.meta.stackexchange.com/questions/5020 to improve formatting.
– Lord Shark the Unknown
yesterday
You should use Mathjax to write equations instead of posting an image.
– harshit54
yesterday
For the second question, break the sum up into its positive and negative terms first and sum them individually.
– Laars Helenius
yesterday
|
show 1 more comment
Find the coefficient of x^20 in $$frac{1}{(1+x)(1-x)^3}$$
How to solve sum of r=0 to r=20 in equation
$$sum_{r=0}^{20} (-1)^r*(r+2)*(r+1)$$
discrete-mathematics
New contributor
Find the coefficient of x^20 in $$frac{1}{(1+x)(1-x)^3}$$
How to solve sum of r=0 to r=20 in equation
$$sum_{r=0}^{20} (-1)^r*(r+2)*(r+1)$$
discrete-mathematics
discrete-mathematics
New contributor
New contributor
edited yesterday
New contributor
asked yesterday
Shubham Pradhan
11
11
New contributor
New contributor
put on hold as off-topic by Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John
If this question can be reworded to fit the rules in the help center, please edit the question.
put on hold as off-topic by Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John yesterday
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Antonios-Alexandros Robotis, Travis, KM101, Saad, Foobaz John
If this question can be reworded to fit the rules in the help center, please edit the question.
Find the coefficient of $x^{20}$ ... in what?
– Lord Shark the Unknown
yesterday
(1/(1+x))*(1/(1-x)^3) @LordSharktheUnknown
– Shubham Pradhan
yesterday
The generic answer to your first question is "partial fractions". Please see math.meta.stackexchange.com/questions/5020 to improve formatting.
– Lord Shark the Unknown
yesterday
You should use Mathjax to write equations instead of posting an image.
– harshit54
yesterday
For the second question, break the sum up into its positive and negative terms first and sum them individually.
– Laars Helenius
yesterday
|
show 1 more comment
Find the coefficient of $x^{20}$ ... in what?
– Lord Shark the Unknown
yesterday
(1/(1+x))*(1/(1-x)^3) @LordSharktheUnknown
– Shubham Pradhan
yesterday
The generic answer to your first question is "partial fractions". Please see math.meta.stackexchange.com/questions/5020 to improve formatting.
– Lord Shark the Unknown
yesterday
You should use Mathjax to write equations instead of posting an image.
– harshit54
yesterday
For the second question, break the sum up into its positive and negative terms first and sum them individually.
– Laars Helenius
yesterday
Find the coefficient of $x^{20}$ ... in what?
– Lord Shark the Unknown
yesterday
Find the coefficient of $x^{20}$ ... in what?
– Lord Shark the Unknown
yesterday
(1/(1+x))*(1/(1-x)^3) @LordSharktheUnknown
– Shubham Pradhan
yesterday
(1/(1+x))*(1/(1-x)^3) @LordSharktheUnknown
– Shubham Pradhan
yesterday
The generic answer to your first question is "partial fractions". Please see math.meta.stackexchange.com/questions/5020 to improve formatting.
– Lord Shark the Unknown
yesterday
The generic answer to your first question is "partial fractions". Please see math.meta.stackexchange.com/questions/5020 to improve formatting.
– Lord Shark the Unknown
yesterday
You should use Mathjax to write equations instead of posting an image.
– harshit54
yesterday
You should use Mathjax to write equations instead of posting an image.
– harshit54
yesterday
For the second question, break the sum up into its positive and negative terms first and sum them individually.
– Laars Helenius
yesterday
For the second question, break the sum up into its positive and negative terms first and sum them individually.
– Laars Helenius
yesterday
|
show 1 more comment
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Find the coefficient of $x^{20}$ ... in what?
– Lord Shark the Unknown
yesterday
(1/(1+x))*(1/(1-x)^3) @LordSharktheUnknown
– Shubham Pradhan
yesterday
The generic answer to your first question is "partial fractions". Please see math.meta.stackexchange.com/questions/5020 to improve formatting.
– Lord Shark the Unknown
yesterday
You should use Mathjax to write equations instead of posting an image.
– harshit54
yesterday
For the second question, break the sum up into its positive and negative terms first and sum them individually.
– Laars Helenius
yesterday