How to prove Gauss’s Multiplication Formula?
31027
Ahlfors "Prove the formula of Gauss"
106157
Proof of Euclid's lemma using fundamental theorem of arithmetic
95643
Proving $\sum_{cyc} \sqrt{a^2+ab+b^2}\geq\sqrt 3$ when $a+b+c=3$
58526
Proving Legendre's Formula
21788
Proving that if $ad-bc = \pm 1$, then $\gcd(x,y) = \gcd(ax +by, cx + dy)$
105406
Proof of Stirling's Formula using Trapezoid rule and Wallis Product
2251
Can someone give me a hint on how to prove this?
147504
How do you prove Gautschi's inequality for the gamma function?
14480
Proving $(P(AB))^2+(P(AB^c))^2+(P(A^cB))^2+(P(A^cB^c))^2\ge\frac{1}{4}$ for any events $A$ and $B$
5927
How to prove $a_1^m + a_2^m + \cdots + a_n^m \geq \frac{1}{a_1} + \frac{1}{a_2} + \cdots + \frac{1}{a_n}$
142132
How do you prove $\sum \frac {n}{2^n} = 2$?
85992
how to prove the chain rule?
12414
prove that : $\cos x \cdot \cos(x-60^{\circ}) \cdot \cos(x+60^{\circ})= \frac14 \cos3x$
60673
To prove $\sum_{cyc}\frac{1}{a^3+b^3+abc} \le \frac{1}{abc}$
139833
Prove that $\gcd(M, N)\times \mbox{lcm}(M, N) = M \times N$.
28218
Elementary proof for $\sqrt[3]{xyz} \leq \dfrac{x+y+z}{3}$
137608
Proof of Euclid's formula for primitive Pythagorean Triples