\(=\dfrac{3^{14}\cdot5^4-5^4\cdot3^{12}}{3^{12}\cdot5^6+7\cdot3^{12}\cdot5^6}=\dfrac{3^{12}\cdot5^4\left(3^2-1\right)}{3^{12}\cdot5^6\left(1+7\right)}=\dfrac{1}{25}\)
\(M=\dfrac{3^6.45^4-15^4.9^4}{27^4.25^3+7.45^6}\)
Cho a+b+c=2010 và \(\dfrac{1}{a+b}+\dfrac{1}{a+b}+\dfrac{1}{c+a}=\dfrac{1}{201}TínhS=\dfrac{a}{b+c}+\dfrac{b}{c+a}+\dfrac{c}{a+b}\)
\(\dfrac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+45^6}\)
Tính:
a) \(\dfrac{3^6.45^4-15^{13}.5^{\cdot-9}}{27^4.25^3+45^6}\)
b) \(\dfrac{\left(\dfrac{2}{5}\right)^7.5^7+\left(\dfrac{9}{4}\right)^3:\left(\dfrac{3}{16}\right)^3}{2^7.5^2+512}\)
\(\frac{3^6.45^4-15^3.5^{-9}}{27^4.25^3+45^6}\)
Tính:\(\frac{3^6.45^4.-15^{13}.5^{-9}}{27^4.25^3+45^6}\)
a,\(\frac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+46^6}\)
\(\frac{3^6.45^4-15^3.5^{-9}}{27^4.25^3+45^6}\)
Tính:\(\frac{3^6.45^4-3^{10}.15^3}{27^4.25^3+45^6}\)=................
\(\frac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+45^6}=?\)
