A = 1/10 + 1/40 + 1/88 + 1/154 + 1/238 + 1/340
B = 3/4 . 8/9 .15/16. ... 9999/10000
1.Tính hợp lí
a) 1/2 + 1/6 + 1/12 + 1/20 + 1/30
b)3/10 + 3/40 + 3/88 + 3/154
Tính tổng A =1/10+1/40+1/88+1/154+1/238+1/340
S = 1/10 + 1/40 + 1/88 + 1/154 + 1/238 + 1/340
1/10 + 1/40 + 1/88 + 1/154 + 1/238 + 1/340
A=1/10+1/40+1/88+1/154+...+1/238+1/340
viết lới giải ra nhé thank
Bài 6 : Tim tong sau :
S = 1/10 + 1/40 + 1/88 + 1/154 + 1/238 + 1/340
Tính \(A=\frac{1}{10}+\frac{1}{40}+\frac{1}{88}+\frac{1}{154}+\frac{1}{238}+\frac{1}{340}\)
Tính A = \(\frac{1}{10}+\frac{1}{40}+\frac{1}{88}+\frac{1}{154}+\frac{1}{238}+\frac{1}{340}\)