Tính giá trị của các biểu thức :
a) \(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}\)
b) \(\frac{9^2.2^{11}}{16^2.6^3}\)
c) \(\frac{2^{10}.3^{31}+2^{40}.3^6}{2^{11}.3^{31}+2^{41}.3^6}\)
d) a.(-b)(-a)2(-b)3(-a)3(-b)4
e) [ - ( -a)3 ] (-a2)3.[ ( -b)2 ]3 . [ - ( -b)4 ]
Giúp mik với
Tính giá trị của các biểu thức:
a. \(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}\)
b. \(\frac{9^2.2^{11}}{16^2.6^3}\)
c. \(\frac{2^{10}.3^{31}+2^{40}.3^6}{2^{11}.3^{31}+2^{41}.3^6}\)
d. \(a\left(-b\right)\left(-a\right)^2\left(-b\right)^3\left(-a\right)^3\left(-b\right)^4\)
e. \([-\left(-a\right)^3]\left(-a^2\right)^3.[\left(-b\right)^2]^3.[-\left(-b\right)^4]\)
tính
\(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}\)
Rút gọn:
\(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}\)
tính
\(\frac{2^{15}.9^4}{6^3.8^3}\)
\(\frac{81^{11}.3^{17}}{27^{10}.9^{15}}\)
\(A=\frac{\frac{1}{11}-\frac{1}{13}-\frac{1}{17}}{\frac{5}{11}-\frac{5}{13}-\frac{5}{17}}+\frac{\frac{-3}{3}-\frac{2}{9}-\frac{2}{27}+\frac{2}{81}}{\frac{7}{3}-\frac{7}{9}-\frac{7}{27}+\frac{7}{81}}\)
bài 1 : tính hợp lí
a) \( \left(-0,125\right)^3.80^4\)
b) \(\frac{81^{11}.3^{17}}{27^{10}.9^{15}}\)
bài 2 : rút gọn
a) \(A=\frac{16^3.3^{10}+120.6^9}{4^6.3^{12}+6^{11}}\)
b)\(B=\left(6^9.2^{10}+12^{10}\right):\left(2^{19}.27^3+15.4^9.9^4\right)\)
c)\(H=x+\frac{0,2-0,375+\frac{5}{11}}{-0,3+\frac{9}{16}-\frac{15}{22}}vs,x=-\frac{1}{3}\)
B1: Tính
a) (1/4)44. (1/2)12
b) \(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}
\)
c)\(\frac{14^{16}.21^{32}.35^{48}}{10^{16}.15^{32}.7^{96}}\)
d)\(\frac{\left(5^4-5^3\right)^3}{125^4}\)
e)\(\frac{10^3+5.10^2+5^3}{6^3+3.6^2+3^3}\)
1/2x + 2/9 = 7/6
317 × 8111/ 2710 × 915
2/5x - 1/3 = 2/3
/=\(\frac{ }{ }\)
