Chứng minh rằng:
\(\frac{1}{3}\)+ \(\frac{1}{3^2}\)+\(\frac{1}{3^3}\)+ - + \(\frac{1}{3^{99}}\)< \(\frac{1}{2}\)
Loga
Toán lớp 6
Chứng minh rằng:
\(\frac{1}{3}\)+ \(\frac{1}{3^2}\)+\(\frac{1}{3^3}\)+ - + \(\frac{1}{3^{99}}\)< \(\frac{1}{2}\)
