$f(x) = x^3 - x$ then $f(n)$ is multiple of 3
130488
Prove by induction that $3\mid n^3 - n$
53024
$f(x)f(1/x)=f(x)+f(1/x)$
125925
Convergence of $f_n(x)=x^n(1-x)^n$
111240
Intersection Number of $B = Y^2 - X^3 + X$ and $F = (X^2 + Y^2)^3 - 4X^2Y^2$ using the fact $I(P,F \cap B) = ord_P^B(F) $.
91947
Proof of $ f:I_n \rightarrow I_m \Rightarrow n = m$
134181
What is the $n$ times iterate of $f(x)=\frac{x}{\sqrt{1+x^2}}$?
32525
If $f(1)=1$, then is it true that $f(n)=n$ for all $n \in \mathbb{N}\cup\{0\}$.
47299
Factorize $x^8-x$ over $F_3$ and $F_{81}$
122407
If $f(x) = x^3+3x+4\;,$ Then value of $ \int_{-1}^{1}f(x)dx+\int_{0}^{4}f^{-1}(x)dx$
49953
Proving that a function from $N\times N$ to $N$ is bijective.
34940
Continuity of $f(x) = x^n$
125040
Show by induction : $n^7-n$ is a multiple of 7
118362
Determine whether $f_n(x)=\frac{x^n}{\sqrt{3n}}$ for $x \in [0,1]$ is uniformly convergent
112512
How to prove that there are finitely many $n$ such that $f(1+1/n) = \frac{1}{n+1}$?
4178
Solve $f(x)f(2x^2) = f(2x^3+x)$
113119
Use the division algorithm to prove that 3|(n³ + 2n) for all n ∈ ℕ
129443
$f(\theta) = \cos \theta - \sqrt{3}\sin \theta$ in the form $r\sin(\theta-\alpha)$