\(B=\frac{3737.43-4343.37}{2+4+6+...+100}\)
\(b=\frac{3737.43-4343.37}{2+4+6+...+100}\)= ?
\(b=\frac{3737\cdot43-4343\cdot37}{2+4+6+...+100}=\frac{37\cdot101\cdot43-43\cdot101\cdot37}{2+4+6+...+100}=\frac{0}{2+4+6+...+100}=0\)
\(\frac{3737.43-4343.37}{2+4+6+...+100}\)?
B=\(\frac{3737.43-4343.37}{2+4+6+...+100}\)=\(\frac{101.37.43-101.43.37}{2+4+6+...+100}\)=\(\frac{101\left(37.43-43.37\right)}{2+4+6+...+100}\)=\(\frac{0}{2+4+6+...+100}\)=0
tính nhanh ;\(\frac{3737.43-4343.37}{2+4+6+......+100}\)
ta có
3737 . 43 - 4343 . 37 = ( 3700 + 37) . 43 - (4300+43) . 37
= 3700 . 43 + 37 .43 - 4300 . 37 + 43 . 37
= 43 . 37 . ( 3700 . 43 - 4300 . 37)
= 1591 . (159100 - 159100)
= 1591 . 0
= 0
vậy \(\frac{3737.43-4343.37}{2+4+6+....+100}\)= 0
đap số 0
1 nha bạn
Chúc các bạn học giỏi
Tết vui vẻ nha
\(\dfrac{3737.43-4343.37}{2+4+6+...+100}\)
`(3737.43-4343.37)/(2+4+...+100)`
`= (101.37.43-101.43.37)/(2+4+...+100)`
`=0/(2+4+...+100) = 0`
\(\dfrac{3737.43-4343.37}{2+4+6+...+100}\)
Gọi \(A=2+4+6+...+100\)
Số số hạng: \(\left(100-2\right):2+1=50\)
Tổng dạy: \(\left(2+100\right).50:2=2550\)
Gọi \(B=3737.43-4343.37\)
\(B=101.37.43-101.43.37=0\)
\(\Rightarrow\dfrac{3737.43-4343.37}{2+4+6+...+100}=\dfrac{0}{2550}=0\)
tính D=\(\frac{3737.43-4343.37}{2+4+6+...+100}\)
giúp mk nhé
\(D=\frac{3737.43-4343.37}{2+4+6+...+100}\)
\(\Rightarrow D=\frac{37.101.43-4343.37}{2+4+6+...+100}\)
\(\Rightarrow D=\frac{37.4343-4343.37}{2+4+6+...+100}\)
\(\Rightarrow D=\frac{4343.\left(37-37\right)}{2+4+6+...+100}\)
\(\Rightarrow D=\frac{4343.0}{2+4+6+...+100}\)
\(\Rightarrow D=\frac{0}{2+4+6+...+100}\)
\(\Rightarrow D=0\)
Vậy D = 0
\(D=\frac{3737.43-4343.37}{2+4+6+...+100}\)
Biến đổi tử số ta có :
\(D_1=3737.43-4343.37\)
\(\Rightarrow D_1=37.101.43-4343.37\)
\(\Rightarrow D_1=\left(43.101\right).37-4343.37\)
\(\Rightarrow D_1=4343.37-4343.37\)
\(\Rightarrow D_1=4343\left(37-37\right)=4343.0=0\)
Thay vào , ta có :
\(\frac{0}{2+4+6+...+100}=0\div\left(2+4+6+...+100\right)=0\)
Vậy : D = 0
Tính \(D=\frac{3737.43-4343.37}{2+4+6+...+100}\)
\(D=\frac{37.101.43-43.101.37}{2+4+6+..+100}=\frac{0}{2+4+...+100}=0\)
C=\(\frac{101+100+99+98+...+3+2+1}{101-100+99-98+...+3-2+1}\)
D=\(\frac{3737.43-4343.37}{2+4+6+...+100}\)
C=\(\frac{101+100+...+3+2+1}{101-100+...+3-2+1}\)
=\(\frac{\left(101+1\right).101:2}{\left(101-100\right)+...+\left(3-2\right)+1}\) (nhóm 2 số hạng ở MS thì sẽ có 51 nhóm và dư 1 số hang )
=\(\frac{102.101:2}{1+...+1+1}\) ( Ms có 51 số 1)
=\(\frac{51.101}{51}\)=101
D=\(\frac{3737.43-4343.37}{2+4+6+...+100}\)
= \(\frac{37.101.43-43.101.37}{2+4+6+..+100}\)
= \(\frac{0}{2+4+6+...+100}\)
=0
Tick mik nha, thks bạn
Tính :
a) \(A=\frac{101+100-99+98+...+3+2+1}{101-100+99-98+...+3-2+1}\)
b) \(B=\frac{3737.43-4343.37}{2+4+6+...+100}\)
Tính :
B = \(\dfrac{3737.43-4343.37}{2+4+6+....+100}\)
\(B=\dfrac{3737.43-4343.37}{2+4+6+...+100}\)
\(=\dfrac{37.101.43-4343.37}{2+4+6+...+100}\)
\(=\dfrac{37.4343-4343.37}{2+4+6+...+100}\)
\(=\dfrac{0}{2+4+6+...+100}\)
\(=0\)