1. Cho
A = \(\dfrac{1}{1^2}\) + \(\dfrac{1}{2^2}\) + \(\dfrac{1}{3^2}\) + \(\dfrac{1}{4^2}\) + - + \(\dfrac{1}{50^2}\). Chứng minh A < 2
Loga
Toán lớp 6
1. Cho
A = \(\dfrac{1}{1^2}\) + \(\dfrac{1}{2^2}\) + \(\dfrac{1}{3^2}\) + \(\dfrac{1}{4^2}\) + - + \(\dfrac{1}{50^2}\). Chứng minh A < 2
