1+2+4+5
TP
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>, < , = ?
| 5 – 2 … 4 | 5 – 4 … 2 | 4 + 1 … 5 |
| 5 – 2 …. 3 | 5 – 3 … 1 | 5 – 1 … 5 |
| 5 – 2 … 2 | 5 – 1 …. 4 | 5 – 4 … 0 |
Lời giải chi tiết:
| 5 – 2 < 4 | 5 – 4 < 2 | 4 + 1 = 5 |
| 5 – 2 = 3 | 5 – 3 > 1 | 5 – 1 < 5 |
| 5 – 2 > 2 | 5 – 1 = 4 | 5 – 4 > 0 |
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5-2<4 5-4<2 4+1=5
5-2=3 5-3>1 5-1<5
5-2>2 5-1=4 5-4>0
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a,1/3 .(x-2/5)=3/4 b, 7/3:(x-2/3)=4/5 c,1/3.(x-2/5)=4/5 d, 2/3.(x-1/2)-1/4.(x-2/5)=7/3 e,3/7 .(x-2/3)+1/2=5/4.(x-2) f,1/2.(x-3)+1/3.(x-4)+1/4.(x-5)=1/5 g,[2/3.(x-1/2)-4/5]:(x-1/3)=21/5 h, {x-[1/2.(x-3)+11/5]}:(x-1/2)=3/5 i,x.(x-2/5)-(x+2).x+11/4=4/3
a: =>x-2/5=3/4:1/3=3/4*3=9/4
=>x=9/4+2/5=45/20+8/20=53/20
b: =>x-2/3=7/3:4/5=7/3*5/4=35/12
=>x=35/12+2/3=43/12
c: 1/3(x-2/5)=4/5
=>x-2/5=4/5*3=12/5
=>x=12/5+2/5=14/5
d: =>2/3x-1/3-1/4x+1/10=7/3
=>5/12x-7/30=7/3
=>5/12x=7/3+7/30=77/30
=>x=77/30:5/12=154/25
e: \(\Leftrightarrow x\cdot\dfrac{3}{7}-\dfrac{2}{7}+\dfrac{1}{2}-\dfrac{5}{4}x+\dfrac{5}{2}=0\)
=>\(x\cdot\dfrac{-23}{28}=\dfrac{2}{7}-3=\dfrac{-19}{7}\)
=>x=19/7:23/28=76/23
f: =>1/2x-3/2+1/3x-4/3+1/4x-5/4=1/5
=>13/12x=1/5+3/2+4/3+5/4=257/60
=>x=257/65
i: =>x^2-2/5x-x^2-2x+11/4=4/3
=>-12/5x=4/3-11/4=-17/12
=>x=17/12:12/5=85/144
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1+1+1+1+1+1+1=?
2+2+2+2+2+2+2=?
3+3+3+3+3+3+3=?
4+4+4+4+4+4+4=?
5+5+5+5+5+5=?
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Bài 1
a, Tính P=1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+....+1/2012(1+2+3+...+2012)
b,Tìm x thỏa mãn 4^5+4^5+4^5+4^5/3^5+3^5+3^5.6^5+6^5+6^5+6^5+6^5+6^5/2^5+2^5=2^x
Kho..................wa.....................troi.....................thi......................lanh.................ret.......................ai........................tich..........................ung.....................ho........................minh.....................cho....................do....................lanh
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Kho..................wa.....................troi.....................thi......................lanh.................ret.......................ai........................tich..........................ung.....................ho........................minh.....................cho....................do....................lanh
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Tính:
5 - 1 = 1 + 4 = 2 + 3 =
5 - 2 = 4 + 1 = 3 + 2 =
5 - 3 = 5 - 1 = 5 - 2 =
5 - 4 = 5 - 4 = 5 - 3 =
5 - 1 = 4 1 + 4 = 5 2 + 3 = 5
5 - 2 = 3 4 + 1 = 5 3 + 2 = 5
5 - 3 = 2 5 - 1 = 4 5 - 2 = 3
5 - 4 = 1 5 - 4 = 1 5 - 3 = 2
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5-1=4 1+4=5 2+3=5
5-2=3 4+1=4 3+2=5
5-3=2 5-1=4 5-2=3
5-4=1 5-4=1 5-3=2
Tính:
5 – 1 …
4 – 1 …
3 – 1 …
2 + 3 ….
5 – 2 …
4 – 2 …
3 – 2 …
3 + 2 ….
5 – 3 ….
4 – 3 …
2 – 1 …
5 – 2 ….
5 – 4 ….
5 – 3 ….
Đọc tiếp
Tính:
| 5 – 1 = … | 4 – 1 = … | 3 – 1 = … | 2 + 3 = …. |
| 5 – 2 = … | 4 – 2 = … | 3 – 2 = … | 3 + 2 = …. |
| 5 – 3 = …. | 4 – 3 = … | 2 – 1 = … | 5 – 2 = …. |
| 5 – 4 = …. | 5 – 3 = …. | ||
Lời giải chi tiết:
| 5 – 1 = 4 | 4 – 1 = 3 | 3 – 1 = 2 | 2 + 3 = 5 |
| 5 – 2 = 3 | 4 – 2 = 2 | 3 – 2 = 1 | 3 + 2 = 5 |
| 5 – 3 = 2 | 4 – 3 = 1 | 2 – 1 = 1 | 5 – 2 = 3 |
| 5 – 4 = 1 | 5 – 3 = 2 | ||
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5-1=4 4-1=3 3-1=2 2+3=5
5-2=3 4-2=2 3-2=1 3+2=5
5-3=2 4-3=1 2-1=1 5-2=3
5-4=1 5-3=2
Tính:
| 5 – 1 = 4 | 4 – 1 = 3 | 3 – 1 = 2 | 2 + 3 = 5 |
| 5 – 2 = 3 | 4 – 2 = 2 | 3 – 2 = 1 | 3 + 2 = 5 |
| 5 – 3 = 2 | 4 – 3 = 1 | 2 – 1 = 1 | 5 – 2 = 3 |
| 5 – 4 = 1 | 5 – 3 = 2 |
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hello mọi người lại mình đây heehehehehhee lê thiên vũ 1+1+1+1 +2+2+2+2+2 +3+3+3+3+3+4+4+4+4+4+4+4 +5+5+5+5+5+5+5+5 x 2 bằng??????????????????????????????????????????????????????????????????????????????????????????????
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=194 nha
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Tính:
5 – 1 …
1 – 1 …
1 – 0 …
5 – 2 …
2 – 2 …
2 – 0 …
5 – 3 …
3 – 3 …
3 – 0 …
5 – 4 …
4 – 4 …
4 – 0 …
5 – 5 …
5 – 5 …
5 – 0 …
Đọc tiếp
Tính:
| 5 – 1 = … | 1 – 1 = … | 1 – 0 = … |
| 5 – 2 = … | 2 – 2 = … | 2 – 0 = … |
| 5 – 3 = … | 3 – 3 = … | 3 – 0 = … |
| 5 – 4 = … | 4 – 4 = … | 4 – 0 = … |
| 5 – 5 = … | 5 – 5 = … | 5 – 0 = … |
Lời giải chi tiết:
| 5 – 1 = 4 | 1 – 1 = 0 | 1 – 0 = 1 |
| 5 – 2 = 3 | 2 – 2 = 0 | 2 – 0 = 2 |
| 5 – 3 = 2 | 3 – 3 = 0 | 3 – 0 = 3 |
| 5 – 4 = 1 | 4 – 4 = 0 | 4 – 0 = 4 |
| 5 – 5 = 0 | 5 – 5 = 0 | 5 – 0 = 5 |
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Tính:
1 - 0 = 1 - 1 = 5 - 1 =
2 - 0 = 2 - 2 = 5 - 2 =
3 - 0 = 3 - 3 = 5 - 3 =
4 - 0 = 4 - 4 = 5 - 4 =
5 - 0 = 5 - 5 = 5 - 5 =
1 - 0 = 1 1 - 1 = 0 5 - 1 = 4
2 - 0 = 2 2 - 2 = 0 5 - 2 = 3
3 - 0 = 3 3 - 3 = 0 5 - 3 = 2
4 - 0 = 4 4 - 4 = 0 5 - 4 = 1
5 - 0 = 5 5 - 5 = 0 5 - 5 = 0
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1 - 0 = 1 1 - 1 = 0 5 - 1 = 4
2 - 0 = 2 2 - 2 = 0 5 - 2 = 3
3 - 0 = 3 3 - 3 = 0 5 - 3 = 2
4 - 0 = 4 4 - 4 = 0 5 - 4 = 1
5 - 0 = 5 5 - 5 = 0 5 - 5 = 0
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