Tính nhanh : \(\frac{10000}{10001}-\frac{9999}{10000}+\frac{1}{9999}-\frac{1}{10000}+...+\frac{3}{4}-\frac{2}{3}+\frac{1}{2}-\frac{1}{3}\)
Tính nhanh
M = 1/10000 + 13 / 10000 + 25 / 10000 + 37 / 10000 + ... + 121 / 10000 + 133 / 10000
a + a + a + 1/2 x 2/5 + a + 8/10 + a = 136
1/2 + 1/4 + 1/6 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256
Tính A = \(\frac{1+2+3+4+5+....+10000}{2+4+6+8+10+...+10000}\)
1+1+1+1+1+1+1+1+1+....+1=?
có 10000 số 1
2+2+2+2+2+2+2+2+2+....+2=?
có 10000 số 2
0+1+2+3+4+5+6+7+8+9+....+10000=?
1+2+3+...+10000
Bài 1:
\(\frac{1}{10000}\)+\(\frac{13}{10000}\)+\(\frac{25}{10000}\)\(\frac{37}{10000}\)+...........+\(\frac{121}{10000}\)\(\frac{133}{10000}\)
Bài 2:
\(a+a+a+\frac{1}{2}x\)\(\frac{2}{5}+a+\frac{8}{10}+a=136\)
1+2+3+...+10000+10001+...+20000+20001
1+2+3+4+5......+9999+10000=.....?
1+2+3+4+5.......+10000+10001