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1d
reviewed Reject Discrete Mathematics Proof Question
1d
reviewed Reject Rational normal curve of degree 4
Apr
24
answered Finding the size of a Galois Group of a splitting field for a polynomial of degree 6.
Jan
17
reviewed Approve How to generate $2\times 2$ matrix with integer entries and both eigenvalues inside unit disk
Jan
8
comment Kernel and image of a homomorphism $SL(2,5)\to S_5$
$S_5$ has a trivial center.
Dec
16
awarded  Caucus
Oct
15
reviewed Reject Show that $\gcd(3n,3n+ 2) = 1$ when $n$ is odd
Oct
3
reviewed Approve Solving seperable ODE $\frac{dy}{dx} = \sin x\cdot\sinh^2 y $
Sep
24
reviewed Approve First order nonlinear ODE
Aug
27
reviewed Approve Formula(/How) to find 2 numbers that add together to give one number and times to give another
Aug
27
reviewed Approve sketch the region in the xy-plane
Aug
27
reviewed Approve How to find where $3$ lines intersect.
Aug
27
reviewed Approve Finding a unique solution given rank $A = m$
Aug
19
accepted Determine the center of this finitely presented group.
Aug
12
reviewed Approve Triple Integral Volume Question
Aug
9
answered Surprising identities / equations
Aug
8
comment Proving that the intersection of a Sylow p-group with a normal subgroup is also a Sylow p-group
possible duplicate of $K$ is a normal subgroup of a finite group $G$ and $S$ is a Sylow $p$-subgroup of $G$. Prove that $K \cap S$ is a Sylow $p$-subgroup of $K$.
Aug
8
reviewed Close Boolean function construction
Aug
8
reviewed Approve In a $16\times16$ chessboard, what is the probability that a rectangle chosen at random on the chess board is a square?
Aug
8
reviewed Approve How to evaluate the integral $\int e^{2x} \sin^2x\ dx$