1/2 + 1/3 + 1/6 + 1/10 +1/15 + ... + 1/36 + 1/45
Tính
1/2+1/3+1/4+1/6+1/10+1/15+...+1/36+1/45
1/3+1/6+1/10+1/15+1/21+1/28+1/36+1/45
1+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
tính : 1/2+1/3+1/6+1/10+1/15+...+1/36+1/45
nhớ trình bày bài giải giùm thanks nhiều.
\(\text{Tính tổng }A=\frac{1}{2}+\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+\frac{1}{15}+...+\frac{1}{36}+\frac{1}{45}\)
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)