tính nhanh:
1/3 +1/6+ 1/12+ 1/24 +1/48 +1/96
Những câu hỏi liên quan
Tính nhanh 1/3+ 1/6 + 1/12 + 1/24 +1/48+ 1/96 =
\(\frac{1}{3}+\frac{1}{6}+\frac{1}{12}+\frac{1}{24}+\frac{1}{48}+\frac{1}{96}\)
\(=\frac{1}{2}+\frac{1}{8}+\frac{1}{32}\)
\(=\frac{5}{8}+\frac{1}{32}\)
\(=\frac{21}{32}\)
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Tính nhanh C = 1/3 + 1/6+ 1/12 + 1/24 + 1/48 + 1/96
Tính nhanh
1/3+1/6+1/12+1/24+1/48+1/96+1/192
\(=2\left(\frac{1}{3}+\frac{1}{6}+...+\frac{1}{192}\right)\)
\(=2\left(1-\frac{1}{3}+\frac{1}{3}-\frac{1}{6}+...+\frac{1}{96}-\frac{1}{192}\right)\)
\(=2\left(1-\frac{1}{192}\right)\)
\(=2\times\frac{191}{192}\)
\(=\frac{191}{96}\)
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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
Tính nhanh biểu thức sau
1/3+1/6+1/12+1/24+1/48+1/96
\(\frac{1}{3}+\frac{1}{6}+\frac{1}{12}+\frac{1}{24}+\frac{1}{48}+\frac{1}{96}\)
\(=\left(\frac{1}{3}+\frac{1}{6}\right)+\left(\frac{1}{12}+\frac{1}{24}\right)+\left(\frac{1}{48}+\frac{1}{96}\right)\)
\(=\frac{1}{2}+\frac{1}{8}+\frac{1}{32}\)
\(=\frac{21}{32}\)
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1/3 +1/6+1/12+1/24 +1/48 + 1/96
= 1/3 + 1/3 – 1/6 + 1/6 – 1/12+1/12 – 1/24 +1/24 – 1/48+1/48 -1/96
=2/3 – 1/96
= 21/32
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Tính nhanh:
1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96
Tính nhanh
1/6+1/12+1/24+/48+1/96
Giải
\(\frac{1}{6}+\frac{1}{12}+\frac{1}{24}+\frac{1}{48}+\)\(\frac{1}{96}\)
\(=\frac{1}{3}-\frac{1}{6}+\frac{1}{6}-\frac{1}{12}\)\(+\frac{1}{12}-\frac{1}{24}+\frac{1}{24}-\frac{1}{48}\)\(+\frac{1}{48}-\frac{1}{96}\)
\(=\frac{1}{3}-\frac{1}{96}\)
\(=\frac{31}{96}\)
1/6 + 1/12 + 1/24 + 1/48 + 1/96
= 1/3 - 1/6 + 1/6 - 1/12 + 1/12 - 1/24 + 1/24 - 1/48 + 1/48 - 1/96
= 1/3 - 1/96
= 31/96
Trả lời:
1/6 + 1/12 + 1/24 + 1/48 + 1/96
= 1/3 - 1/6 + 1/6 - 1/12 + 1/12 - 1/24+ 1/24 - 1/48 + 1/48 - 1/96
= 1/3 - 1/96
= 31/96
#hien#
tinh nhanh
1/3+1/6+1/12+1/24+1/48+1/96
