Các câu hỏi tương tự
Tính nhanh:1995x1997-1/1996x1995+1994 5392+6001x5391/5392x6001-69
(1-1/2 )x(1-1/3)x(1-1/4 ) x...x(1/100)
2/3+2/6+2/12+2/24+2/48+2/96
1) 1/3 x 1/2 x 3/7 2) 5/4 x 1/3 + 1/7 3) 8 x ( 8/9-2/3 ) 4) 5/6 x 48/20 x 1/2 5) ( 2/5 + 3/4 ) x 8 6) 10 x ( 1/2-1/5 )
a) 1/2 x 1/4 + 1/2 x 3/4
b) 4/5 x 1/2 - 1/2 x 1/4
Tính bằng cách thuận tiện nhất:2/5 x 5 +4 x 2/5+2/5 (1-1/2)x(1-3/5)x(1-2/7)x(1-2/9).......................................................................................................................................................................................................................................................................................................................................
Đọc tiếp
Tính bằng cách thuận tiện nhất:
2/5 x 5 +4 x 2/5+2/5 (1-1/2)x(1-3/5)x(1-2/7)x(1-2/9)
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22 tháng 4 2023 lúc 19:41
2/5x5+4x2/5+2/5 (1-1/2)x(1-3/5)x(1-2/7)x(1-2/9)
2/5x5+4x2/5+2/5 (1-1/2)x(1-3/5)x(1-2/7)x(1-2/9)
[ 1 - 2/5 ] x [ 1 - 2/7 ] x [ 1 - 2/9 ] x [ 1 - 2/11 ] x ...... x [ 1 - 2/97 ] x [ 1 - 2/ 99 ] =
Giúp tớ nhanh nha cânf gấp
[1+2/1]x[1+2/2]x[1+2/3]x...x[1+3/32]
tính
2/9 : 2/3 x 1/2
1/2 x 1/3 + 1/4
2/7 : 2/3 - 1/7