1+1/3+1/6+1/10+1/15+1/21+1/28+1/38+1/45=9/5
Đúng 2
Bình luận (0)
1+1/3+1/6+1/10+1/15+1/21+1/28+1/38+1/45=9/5
1/3+1/6+1/10+1/15+1/21+1/28+1/36+1/45
p=1/3 +1/6 +1/10 +1/15 +1/21 +1/28 +1/36 +1/45 giúp mk với
1/6+1/10+1/15+1/21+1/28+/36+1/45 (Tính tổng)
1/6+1/10+1/15+1/21+1/28+1/36+1/45(tính tổng)
tính
D = 1/6 + 1/10 + 1/15 + 1/21 + 1/ 28 + 1/36 + 1/45
Tính hợp lý
1/6+1/10+1/15+1/21+1/28+1/36+1/45
Chứng tỏ rằng: 1/10+1/15+1/21+1/28+1/36+1/45=3/10
Tính:
1/3+1/6+1/10+1/15+1/21+1/28+1/36+1/45
giải chi tiết giúp mình với nhé
1+\(\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+\frac{1}{15}+\frac{1}{21}+\frac{1}{28}+\frac{1}{36}+\frac{1}{45}\)