Các câu hỏi tương tự
1 + 1 1 + 11 + 11 + 11 + 11 + 11 + 1 + 111 + 11 + 11 + 11 + 11 +1 + 1 11 + 11 + 1x 31 + 11 + 11 + 1
1+1+1+1+1+1+1+11+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+11+1+1+1+1+1+1+1+1+1+1.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.22.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.22.2.2.2.22.2.2.2.22.2.2.2.2.2.2.2.2.-3.3+5.4444444=???
tìm tổng? gọi số n
1-1-1-1-1-1-1-11-1-1-1-1-1-1--1-1-1-1-1-1=?
(1-1/2)x(1-1/11)x(1-1/10)x(1-1/9)x(1-1/8)
(1-1/12)×(1-1/11)×(1-1/10)×(1-1/9)×(1-1/8)
Giúp em😭❤
tính bằng cách thuận tiện nhất
(1 - 1/12 ) x (1-1/11)x (1-1/10)x(1-1/9)x(1-1/8)
1*1*1*11*1*11*1*1*=
2*2*2*2*22*2*2*2*2*2*2*0*2*2*2*=
1+1+1+1-11
\(\frac{1}{3}\times\frac{1}{7}+\frac{1}{7}\times\frac{1}{11}+\frac{1}{11}\times\frac{1}{15}+\frac{1}{15}\times\frac{1}{19}=?\)