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Binomial Coefficient Summer Party!

Well, I am bored.

So, I would like to start a challenge party just like I have previously done before for calculus. This time, it's based on Binomial Coefficient.

You can also post the challenges if you like which should mostly be based on proof writing. If there is no solution for a week, the challenge writer must give its solution.

Have fun!

Note by Kartik Sharma
5 months, 3 weeks ago

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**bold** or __bold__ bold

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• bulleted
• list

1. numbered
2. list

1. numbered
2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

> This is a quote
This is a quote
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in $$...$$ or $...$ to ensure proper formatting.
2 \times 3 $$2 \times 3$$
2^{34} $$2^{34}$$
a_{i-1} $$a_{i-1}$$
\frac{2}{3} $$\frac{2}{3}$$
\sqrt{2} $$\sqrt{2}$$
\sum_{i=1}^3 $$\sum_{i=1}^3$$
\sin \theta $$\sin \theta$$
\boxed{123} $$\boxed{123}$$

Sort by:

Here is the first challenge.

- 5 months, 3 weeks ago

I'd like to propose a problem. I have posted it here. There exists a very elegant solution.

- 5 months ago

- 5 months, 3 weeks ago

1, 2, 3.

- 5 months, 3 weeks ago