Mathematics
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Debashish
  • Member for 7 years, 11 months
  • Last seen more than 2 years ago
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A maths enthusiast !!

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9
How do I invoke cm-super?
9
Evaluate $\sum\limits_{k=0}^n(-1)^{n+k}{n\choose k}{ {n+k}\choose n} \frac{1}{k+2}$
9
Prove that $512^3 + 675^3 + 720^3$ is a composite number
7
Is the sequence $x_n=\dfrac{1}{\sqrt{n}}\left(1+\dfrac{1}{\sqrt{2}}+\dfrac{1}{\sqrt{3}}+\ldots+\dfrac{1}{\sqrt{n}}\right)$ monotone?
7
I need a relation which is not reflexive, not symmetric, and not transitive

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