Các câu hỏi tương tự
b, (1+2+3+....+100).(1/3-1/-5-1/-7-1/9) c, (6,3.12-21.3,6)/1/2+1/3+...+1/100
a)(3/10-4/15-7/20).5/19 / (1/14+1/7-(-3/35)).(-4/3)
b)(1+2+3+...+100).(1/3-1/5-1/7-1/9).(6,3.12-21.3,6) / 1/2+1/3+1/4+...+1/100
LÀM GIÚP MIK VỚI Ạ MIK GẤP LẮM RỒI
Tính nhanh
\(\frac{\left(1+2+3+...+99+100\right).\left(\frac{1}{3}-\frac{1}{5}-\frac{1}{7}-\frac{1}{9}\right).\left(6,3.12-21.3,6\right)}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{100}}\)
a) 1/100.99 - 1/99.98 - 1/98.97 - ........... - 1/3.2 - 1/2.1
b) (1+2+3+.........+100) . (1/3-1/5-1/7-1/9) . (6,3.12-21.3,6)/1/2+1/3+1/4+......+1/100
c)1/4-1/7-1/11phan4/4-4/7-4/11+3/5-3/15-3/125-3/625phan4/5-4/25-4/125-4/625
giải ra hộ mk nha
THỰC HIÊN PHÉP TÍNH SAU:
(1+ 2+ 3+...+100). (1/3-1/5-1/7-1/9). ( 6,3.12-21.3,6)
1/2+1/3+1/4...+1/100
thực hiên các phép tính tính :
a) \(\frac{\left(\frac{3}{10}-\frac{4}{15}-\frac{7}{20}\right).\frac{5}{19}}{\left(\frac{1}{14}+\frac{1}{7}-\frac{-3}{35}\right).\frac{-4}{3}}\)
b) \(\frac{\left(1+2+3+...+100\right).\left(\frac{1}{3}-\frac{1}{5}-\frac{1}{7}-\frac{1}{9}\right).\left(6,3.12-21.3,6\right)}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{100}}\)
(1+2+3+...+100).(1/3-1/5-1/7-1/9)(6,3.1,2-21.3,6/1/2+1/3+...+1/100
5 tháng 2 2022 lúc 15:48
tính nhanh (1+2+3+...+99+100).(1/2-1/3-1/7-1/9)(63.1,2-21.3,6)/1-2+3-4+...+99-100
A=(1+2+3+...+99+100)(1/2-1/3-1/7-1/9)(63.1,2-21.3,6)/1-2+3-4+...+99-100