Jump to content

Photo

$$2<\sum_{A,B,C}\left(\frac{\sin{A}}{A} \right) \le \frac{9\sqrt{3}}{2\pi}$$

- - - - - mathlinks.ro

  • Please log in to reply
No replies to this topic

#1
dark templar

dark templar

    Kael-Invoker

  • Hiệp sỹ
  • 3788 posts
Bài toán: Cho $A,B,C$ là 3 góc của 1 tam giác bất kỳ.Chứng minh rằng:
$$2<\sum_{A,B,C}\left(\frac{\sin{A}}{A} \right) \le \frac{9\sqrt{3}}{2\pi}$$
"Do you still... believe in me ?" Sarah Kerrigan asked Jim Raynor - Starcraft II:Heart Of The Swarm.





Also tagged with one or more of these keywords: mathlinks.ro

1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users