Mathematics
Freeman Cheng's user avatar
Freeman Cheng's user avatar
Freeman Cheng's user avatar
Freeman Cheng
  • Member for 6 years, 6 months
  • Last seen this week
  • Canada
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29
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14
Posts %
2
Score
2
Posts
29
Posts %
2
Score
1
Posts
14
Posts %
2
Score
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Posts
14
Posts %
2
Score
1
Posts
14
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All Questions Answers
Score Newest
answer
3
Prove that if two vectors are orthogonal to another vector, then they are scalar multiples of each other
Feb 10, 2018
answer
2
Suppose that $n$ is a positive integer. Prove that the integer $5n+ 3$ is not a perfect square.
Mar 21, 2017
answer
2
Show that ${n\choose r}={{n-1}\choose{r-1}}+{{n-1}\choose {r}}$.
Mar 21, 2017
question
1
Given $a_{n+1}=a_{n}+\frac{1}{a_{n}}$, how can I find $\lfloor a_{1000} \rfloor$? [duplicate]
Aug 23, 2019
answer
1
Picking Objects Simultaneously
Mar 21, 2017
answer
1
Solving Algebra involving surds
Apr 8, 2017
answer
0
Proof that $ p $ | ${ p^n \choose k } $ for any prime $p$ and $ k < p^n$
Aug 14, 2019

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