Reputation
3,915
Top tag
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
13 33
Newest
 Nice Answer
Impact
~108k people reached

Mar
3
revised Factor $16x^4-x^2y^2+y^4$
removed paranthesis in ttitle htat weren't necessary
Mar
3
comment Factor $16x^4-x^2y^2+y^4$
He wants to factor the right side of the equation.
Mar
3
reviewed Approve Factor $16x^4-x^2y^2+y^4$
Mar
3
comment Trivial solution when solving in integers
another contradiction: $3|3t^2 \implies 3|(13s^2-24s) \implies 3^2|13s^2-24s \implies 3|t \implies 3|\gcd(s,t)$
Feb
29
reviewed Approve Find the integral of $\frac{\sin(x)}{1+\sin^2(x)}$
Feb
29
revised Integrate $\int_0^\infty \frac{\log x}{x^2+2x+4}\ dx$
edited title
Feb
29
reviewed Approve More than basis vectors in a space are dependent, less can't span the space proof
Feb
29
comment How do you sketch the LHS and RHS on one pair of axes and then solve
@Galc127: so $|a|\ge |b|$ if $a=-1$ and $b=-5$
Feb
29
comment How do you sketch the LHS and RHS on one pair of axes and then solve
How do you graph |x-1|?
Feb
25
revised What is $x$ in a polynomial?
typo
Feb
23
comment What is $R\circ S$? For$ s = \{(1,2),(1,3),(2,3),(2,4),(3,1)\}$ and …
same quesion
Feb
23
comment Prove a formula is not a logical consequence of KB
@Wojowu: How do you write a comment with less than 15 characters?
Feb
23
revised Tedious fraction decomposition integral
error in formula
Feb
20
comment Prove that $a^5 ≡ a$ (mod 15) for every integer $a$
It is sufficient to proof this for a=0,...,14
Feb
18
comment Eliminating a variable using three equations
Did you already try to disprove it by choosing numbers that satisfy the first three equations and insert them in the fourth equation?
Feb
18
revised $\frac{1\cdot2^2+2\cdot3^2+\cdots+n(n+1)^2}{1^2\cdot2+2^2\cdot3+\cdots+n^2(n+1)}=\frac{3n+5}{3n+1}$ by Mathematical Induction
two numbers were missing
Feb
17
revised $\frac{1\cdot2^2+2\cdot3^2+\cdots+n(n+1)^2}{1^2\cdot2+2^2\cdot3+\cdots+n^2(n+1)}=\frac{3n+5}{3n+1}$ by Mathematical Induction
added 1 character in body
Feb
17
revised $\frac{1\cdot2^2+2\cdot3^2+\cdots+n(n+1)^2}{1^2\cdot2+2^2\cdot3+\cdots+n^2(n+1)}=\frac{3n+5}{3n+1}$ by Mathematical Induction
added 56 characters in body
Feb
17
revised $\frac{1\cdot2^2+2\cdot3^2+\cdots+n(n+1)^2}{1^2\cdot2+2^2\cdot3+\cdots+n^2(n+1)}=\frac{3n+5}{3n+1}$ by Mathematical Induction
added 20 characters in body
Feb
17
answered $\frac{1\cdot2^2+2\cdot3^2+\cdots+n(n+1)^2}{1^2\cdot2+2^2\cdot3+\cdots+n^2(n+1)}=\frac{3n+5}{3n+1}$ by Mathematical Induction