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1d |
reviewed |
Close if $G$ is a group , $H$ is a subgroup of $G$ and $g\in G$ , Is it possible that $gHg^{-1} \subset H$? |
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1d |
comment |
Is there a deep reason why $(3, 4, 5)$ is pythagorean?
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1d |
comment |
Is there a deep reason why $(3, 4, 5)$ is pythagorean?
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1d |
reviewed |
Close Really needed some higher level maths |
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1d |
comment |
Is there a deep reason why $(3, 4, 5)$ is pythagorean?
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1d |
reviewed |
Close Discrete Math Satisfying functions with sets |
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2d |
reviewed |
Close How to calc the square root of a number without calculator? |
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2d |
reviewed |
Approve suggested edit on Suppose that a $3\times 3$ matrix $M$ has an eigenspace of dimension $3$. Prove that $M$ is a diagonal matrix. |
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2d |
reviewed |
Reject suggested edit on If a monic $f\in\overline{K}[x]$ has a power $f^n\in K[x]$, where the characteristic of $K$ doesn't divide $n$, then must $f\in K[x]$? |
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2d |
reviewed |
Close $\left(-\frac{1}{2}\right)! = \sqrt{\pi}?$ |
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2d |
reviewed |
Close Frictional force |
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2d |
reviewed |
Leave Open How many ways can $5$ rings be placed on $4$ fingers? |
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2d |
reviewed |
Close counting more problem continue |
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2d |
reviewed |
Close About having everything well under control |
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2d |
reviewed |
Reject suggested edit on Is it possible to generalize Ramanujan's lower bound for factorials when $\{\frac{x}{b_2}\} + \{\frac{x}{b_3}\} \ge 1$? |
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reviewed |
Approve suggested edit on Help with anti-image matrix |
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reviewed |
Approve suggested edit on Orthonormal basis, isomorphism preserving dot product |
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awarded |
Nice Answer
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comment |
How to calc the square root of a number without calculator?
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revised |
Let $g(x) = \int_{0}^{2^x} \sin(t^2)\,dt $. What is the $g'(0)$?
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