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\(=\dfrac{2^{12}\cdot3^4\left(3-1\right)}{2^{12}\cdot3^6}-\dfrac{5^{10}\cdot7^3\left(1-7\right)}{5^9\cdot7^3+5^9\cdot7^3\cdot2^3}\)
\(=\dfrac{-2}{9}-\dfrac{5\cdot\left(-6\right)}{9}=\dfrac{-2-5\cdot\left(-6\right)}{9}=\dfrac{-2+30}{9}=\dfrac{28}{9}\)
- Ta có : `6/25=(6.5)/(25.5)=30/125`
`14/125<30/125`
`=> 14/125<6/25`
/-314/= 314 ; /+125 / = 125
Ta có : ( - 216 ) < ( - 212 ) < 0 < 125 < ( + 127 ) < 314
Vậy sắp xếp các số theo thứ tự tăng dần là : -216 ; ( - 212 ) ; 0 ; / +125/ ; ( + 127 ) ; / - 314 /
A=(212.14.125):(355.6)
A=(441.14.125):(355.6)
A=771750:(355.6)
A=\(\frac{3}{1225}\)
\(21^2\times14\times125\div35^3\times6\)phải cái đề gì không
a) ta có: 125^4=(5^3)^4=5^12
49^6= (7^2)^6= 7^12
vì....>.....=>......>.........
B VÀ C LM TƯƠNG TỰ NHÉ LINH
3111 và 1714 Ta thấy 31^11 < 32^11 = (2^5)^11 = 2^55 (1) 17^14 > 16^14 = (2^4 )^14 = 2^56 (2) Từ (1) và (2) 31^11 < 2^55 < 2^56 < 17^14 nên 31^11 < 17^14
\(\frac{21^2.14.125}{35^3.6}\)
\(=\frac{7^2.3^2.2.7.5^3}{7^3.5^3.2.3}\)
\(=\frac{7^3.3^2.2.5^3}{7^3.5^3.2.3}\)
\(=3\)
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