Tpofofn
Reputation
2,431
Top tag
Next privilege 2,500 Rep.
Create tag synonyms
Badges
8 22
Newest
Impact
~95k people reached

• 7 helpful flags
• 362 votes cast

438 Actions

 Feb13 reviewed Looks OK Difference between closed, bounded and compact sets Feb13 reviewed Edit Proving this inequality Feb13 revised Proving this inequality clarified that the answer is a counter example. Feb13 reviewed Reviewed Unreachable rubik cube positions. Feb13 comment Unreachable rubik cube positions. The OP explicitly stated "by applying standard moves", so moving stickers doesn't count. This answer does not address the intent of the OP. Feb13 reviewed Approve Finding Tangent Line and Slope of a curve Feb12 comment Linear Algebra - Show that $M$ is not a vector space So $\begin{bmatrix}0&b\\c&d\end{bmatrix}$ and $\begin{bmatrix}a&b\\c&0\end{bmatrix}$ are in the set. Is their sum in the set? Feb12 comment Linear Algebra - Show that $M$ is not a vector space Is the set closed under addition? Feb11 reviewed Approve How to show if a function is continuous Feb9 reviewed Approve Find subfield of R? Other than Q. Feb9 reviewed No Action Needed Give context-free grammars that generate these languages Feb9 comment a and b are integers where gcd(a,b)=p which is a prime. find gcd(a^2,b^2). By squaring a and b, you do not introduce any additional prime factors. Feb7 comment Physics Vector Problem - Airplane @JohnHabert, Yes, of course. Good catch... should have sketched it out. Feb7 comment Physics Vector Problem - Airplane It is like the Pythagorean theorem but for general triangles. It is ideal to use when you know two sides and the angle between them to find the third side. In your case the two sides are your two lengths, the angle is 70 degrees. Feb7 comment Physics Vector Problem - Airplane Do you know the law of cosines? Feb7 comment Basic Euclidean Geometry, Circle Arc Your strategy would depend on the relative distance between the way points and the turning radius of your vehicle. If the distance is much larger than the radius, then you should just point and shoot for the next way point (i.e. drive a straight line), if they are of the same order of magnitude you will probably need to compute curve paths. Feb6 reviewed Reviewed Indefinite integral of secant cubed Feb6 revised Indefinite integral of secant cubed Added LaTeX for equation. Feb5 reviewed Approve Basic analysis - sequence convergence Feb4 reviewed Approve For how many values of $n$ with $0\le n\le100$ is the graph of $f(x)=\sin(x+n)$ identical to the graph of $g(x)=\cos x$?