(1 + 1 + 1 + 1 + 2 + 2 + 2 + 2 + …+ 4 ) : 23 18/07/2021 Bởi Reese (1 + 1 + 1 + 1 + 2 + 2 + 2 + 2 + …+ 4 ) : 23
`(1+1 1/4+1 1/2+1 3/4+2+2 1/4+2 1/2+2 3/4+…+4 3/4):23` `=[(1+2+3+4)+1 1/4+1 1/2+1 3/4+2 1/4+2 1/2+2 3/4+…+4 3/4):23` `=[10+(5/4+7/4+9/4+11/4+13/4+15/4+17/4+19/4)+(3/2+5/2+7/2+9/2)]:23` `=(10+24+12):23` `=46:23` `=2.` Bình luận
Đáp án: `2` Giải thích các bước giải: `(1+1(1)/4+ 1(1)/2 +1(3)/4+ 2 +2(1)/4+ 2(1)/2 + 2(3)/4+….+4(3)/4):23` `=[(1+2+3+4)+(1(1)/4+1(1)/2+1(3)/4+2(1)/4+2(1)/2+2(3)/4+…+4(3)/4):23` `=[10+(1(1)/4+1(3)/4+2(1)/4+2(3)/4+3(1)/4+3(3)/4+4(1)/4+4/(3)/4)+(1(1)/2+2(1)/2+3(1)/2+4(1)/2)]:23` `=[10+(5/4+7/4+9/4+11/4+13/4+15/4+17/4+19/4)+(3/2+5/2+7/2+9/2)]:23` `=[10+24+12]:23` `=46 : 23` `=2` Bình luận
`(1+1 1/4+1 1/2+1 3/4+2+2 1/4+2 1/2+2 3/4+…+4 3/4):23`
`=[(1+2+3+4)+1 1/4+1 1/2+1 3/4+2 1/4+2 1/2+2 3/4+…+4 3/4):23`
`=[10+(5/4+7/4+9/4+11/4+13/4+15/4+17/4+19/4)+(3/2+5/2+7/2+9/2)]:23`
`=(10+24+12):23`
`=46:23`
`=2.`
Đáp án:
`2`
Giải thích các bước giải:
`(1+1(1)/4+ 1(1)/2 +1(3)/4+ 2 +2(1)/4+ 2(1)/2 + 2(3)/4+….+4(3)/4):23`
`=[(1+2+3+4)+(1(1)/4+1(1)/2+1(3)/4+2(1)/4+2(1)/2+2(3)/4+…+4(3)/4):23`
`=[10+(1(1)/4+1(3)/4+2(1)/4+2(3)/4+3(1)/4+3(3)/4+4(1)/4+4/(3)/4)+(1(1)/2+2(1)/2+3(1)/2+4(1)/2)]:23`
`=[10+(5/4+7/4+9/4+11/4+13/4+15/4+17/4+19/4)+(3/2+5/2+7/2+9/2)]:23`
`=[10+24+12]:23`
`=46 : 23`
`=2`