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![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(A=\dfrac{3737.43-4343.37}{2+4+6+...+2018}\)
\(\Leftrightarrow A=\dfrac{3737.43-43.101.37}{2+4+6+...+2018}\)
\(\Leftrightarrow A=\dfrac{3737.43-43.3737}{2+4+6+...+2018}\)
\(\Leftrightarrow A=\dfrac{0}{2+4+6+...+2018}\)
\(\Leftrightarrow A=0\)
b) \(B=\dfrac{101+100+99+...+3+2+1}{101-100+99-98+...+3-2+1}\)
\(\Leftrightarrow B=\dfrac{\left(101+1\right).101:2}{\left(101+99+97+...+1\right)-\left(100+98+96+...+2\right)}\)
\(\Leftrightarrow B=\dfrac{5151}{\left[\left(101+1\right).51:2\right]-\left[\left(100+2\right).50:2\right]}\)
\(\Leftrightarrow B=\dfrac{5151}{2601-2550}\)
\(\Leftrightarrow B=\dfrac{5151}{51}\)
\(\Leftrightarrow B=101\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(B=\frac{3737.43-4343.37}{2+4+6+...+100}\)
=>\(B=\frac{37.101.43-4343.37}{2+4+6+...+100}\)
=>\(B=\frac{37.4343-4343.37}{2+4+6+...+100}\)
=>\(B=\frac{0}{2+4+6+...+100}\)
=>\(B=0\)
=> \(B=\frac{37.101.43-43.101.37}{2+4+6+...+100}=\frac{0}{2+4+6+...+100}=0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
C = \(\frac{101+100+99+98+...+3+2+1}{101-100+99-98+...+3-2+1}\)
\(C=\frac{\left(101+1\right).101:2}{1+1+...+1+1}\)
\(C=\frac{5151}{51}\)
\(C=101\)
b) \(D=\frac{3737.43-4343.37}{2+4+6+...+100}\)
\(D=\frac{37.101.43-43.101.37}{2+4+6+...+100}\)
\(D=\frac{0}{2+4+6+...+100}\)
\(D=0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{3737.43-4343.7}{2+4+6+...+100}\)
\(=\frac{37.101.43-4343.37}{2+4+6+...+100}\)
\(=\frac{37.4343-4343.37}{2+4+6+...+100}\)
\(=\frac{0}{2+4+6+...+100}\)
Ta có : Tử số bằng 0 \(\Rightarrow\) phân số trên bằng 0
\(=0\)
\(\frac{3737.43-4343.7}{2+4+6+....+100}\)
=\(\frac{37.101.43-4343.37}{2+4+6+...+100}\)
\(=\frac{37.4343-4343.37}{2+4+6+....+100}\\ =\frac{0}{2+4+6+...+100}\\ =0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài dưới :
2 + 4 + 6 + ... +2016
Số các số là :
( 2016 - 2 ) : 2 + 1 = 1008
Tổng các số là :
1008 x ( 2016 + 2 ): 2 = 1017072
Đáp số : 1017072
Số cần tim là: 1017072
Ai tích mik mik sẽ tích lại nha !
![](https://rs.olm.vn/images/avt/0.png?1311)
3737 x 43 - 4343 x 37 / 2 + 4 + 6 + ... +100
= 3737 x 43 - 4343 x 37 / 2 + 4 + 6+ ....+ 100
= 0/ 2 + 4+ 6 + ...+ 100
= 0
het rui
![](https://rs.olm.vn/images/avt/0.png?1311)
C = \(\frac{3737\times43-4343\times7}{2+\text{4}+6+....+100}\)
C = \(\frac{160691-4343\times7}{\left(100-2\right)\div2+1}\)
C = \(\frac{160691-30401}{50}\)
C = \(\frac{130290}{\left(100+2\right)\times50\div2}\)
C = \(\frac{120290}{2550}=\frac{12029}{255}\)
kết quả là 36360 / 255 mới đúng nhé tớ chưa rút gọn hết nhé các bạn đừng hiểu sai
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{3737.43-4343.37}{2+4+6+....+100}\)
=\(\frac{37.101.43-4343.37}{2+4+6+...+100}\)
=\(\frac{37.4343-4343.37}{2+4+6+...+100}\)
=\(\frac{0}{2+4+6+...+100}\)
= 0
A = \(\frac{3737x43-4343x37}{2+4+6+...+2018}\)
A = \(\frac{37x101x43-43x101x37}{2+4+6+..+2018}\)
A = \(\frac{0}{2+4+6+..+2018}\) = 0