\(=2\left(\frac{1}{3}+\frac{1}{6}+...+\frac{1}{192}\right)\)
\(=2\left(1-\frac{1}{3}+\frac{1}{3}-\frac{1}{6}+...+\frac{1}{96}-\frac{1}{192}\right)\)
\(=2\left(1-\frac{1}{192}\right)\)
\(=2\times\frac{191}{192}\)
\(=\frac{191}{96}\)
1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384
A = 1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96 + 1/192 + 1/384 + 1/768 +1/1536
A= 1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1 /96 + 1/192
Tính nhanh nè :
1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96 + 1/192
Giúp mình với nha ! mai mình phải nộp bài rồi !
tinh nhanh 1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384
ghi ro loi giai
Tính nhanh:
a) 2+5+8+11+...+104+107.
b) \(\frac{1}{3}+\frac{1}{6}+\frac{1}{12}+\frac{1}{24}+\frac{1}{48}+\frac{1}{96}+\frac{1}{192}\)
Tính nhanh C = 1/3 + 1/6+ 1/12 + 1/24 + 1/48 + 1/96
Bài 2112: Tính nhanh :
1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96
Tính nhanh biểu thức sau:
1/3+1/6+1/12+1/24+1/48+1/96