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1d
reviewed Approve suggested edit on Formula(/How) to find 2 numbers that add together to give one number and times to give another
1d
reviewed Approve suggested edit on sketch the region in the xy-plane
1d
reviewed Approve suggested edit on How to find where $3$ lines intersect.
1d
reviewed Approve suggested edit on Finding a unique solution given rank $A = m$
Aug
19
accepted Determine the center of this finitely presented group.
Aug
12
reviewed Approve suggested edit on 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 Approve suggested edit on Maximizing business profit
Aug
8
reviewed Leave Open 5th Grade Math Word Problem
Aug
8
reviewed Close Boolean function construction
Aug
8
reviewed Reopen How to find the equivalent formulas of $\neg ((p\land q) \to (p \land r))$
Aug
8
reviewed Approve suggested edit on 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 suggested edit on How to evaluate the integral $\int e^{2x} \sin^2x\ dx$
Aug
7
comment How prove $-\sqrt{2}\log(\cos x)\leq\sqrt{x\tan x-\sin^{2}x}$?
Use the derivative
Aug
7
reviewed Approve suggested edit on If G is direct product of nonabelian & simple groups. Then prove that Aut(Aut(G)) has only inner automorphisms.
Aug
7
answered How can I prove that $xy\leq x^2+y^2$?
Aug
7
reviewed Approve suggested edit on Calculate Interior Dimensions Using Cubic Feet
Aug
7
reviewed Approve suggested edit on My orbiting body is orbiting about the wrong focus of it's elliptical orbit… why?
Aug
6
comment Minimal polynomial for $\zeta+\zeta^5$ for a primitive seventh root of unity $\zeta$
@JyrkiLahtonen That is not correct. For example the conjugates of $\sqrt{2}$ over the rationals are distinct but not linearly independent.