S.C.B.
  • Member for 5 years, 11 months
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6 answers
44 votes
4k views
12 bookmarks
Which derivatives are eventually periodic?
1 answers
26 votes
430 views
10 bookmarks
Numbers that are clearly NOT a Square
1 answers
14 votes
400 views
7 bookmarks
Are the fractional parts of powers of $\pi$ divergent?
1 answers
9 votes
202 views
6 bookmarks
Find all $f:\mathbb {R} \rightarrow \mathbb {R}$ where $f(f(x))=f'(x)f(x)+c$
2 answers
7 votes
151 views
1 bookmarks
Finding the minimum of $x^2+y^2$ for $(x^2y-xy^2)(x^3-y^3)=x^3+y^3$ and $xy>0$.
1 answers
6 votes
155 views
5 bookmarks
Using Vieta's Formula
1 answers
5 votes
122 views
1 bookmarks
How to solve $f(x)+f\left(\frac{1}{x}\right)=e^{x+\frac{1}{x}}$
1 answers
5 votes
186 views
Why are there conflicting results for integration?
3 answers
5 votes
2k views
4 bookmarks
Finding the shortest distance between two Parabolas
2 answers
4 votes
1k views
2 bookmarks
If $x+y+z=0$, prove that $\frac{x^2}{2x^2+yz}+\frac{y^2}{2y^2+zx}+\frac{z^2}{2z^2+xy}=1$
0 answers
3 votes
139 views
Simplifying Fraction for Nested Radicals
1 answers
2 votes
102 views
Are primes less than the sum of divisors?
2 answers
2 votes
127 views
1 bookmarks
When the Sum of digits exceed the Number of Divisors
2 answers
2 votes
250 views
1 bookmarks
Comparing a Factorial and a Perfect Power
4 answers
2 votes
211 views
1 bookmarks
Proving that the exponential inequality $e^x \ge x^e$ holds for all $x \ge 0$
4 answers
1 votes
201 views
1 bookmarks
Finding the height of a Building at Night
2 answers
1 votes
360 views
Memorizing Formulas for Differentiation
1 answers
1 votes
115 views
Error with the proof that all solutions to the Cauchy Functional Equation are linear
1 answers
0 votes
161 views
Connection between 7 and 13