(6^9x2^10x2^10): (2^19x27^3+15x4^9x9^4)
Help ikkk, tui like cho
(6^9x2^10x2^10): (2^19x27^3+15x4^9x9^4)
(6^9x2^10x2^10): (2^19x27^3+15x4^9x9^4)
ính
Bài 1:
a) A=2^19x27^3+15x4^9x9/6^9x2^10+1^210
Các bạn giải giúp mik nhé, nếu sai đề thì bảo mik, mik cảm ơn^^
Tính :
\(\frac{2^{19}x27^3+15x4^9x9^4}{6^9x2^{10}+12^{10}}\)
^Mk cần câu TL rõ ràng nhé
=\(\frac{2^{19}.\left(3^3\right)^3+3.5.\left(2^2\right)^9.\left(3^2\right)^4}{\left(2.3\right)^9.2^{10}+\left(2^2.3\right)^{10}}\)
=\(\frac{2^{19}.3^9+5.2^{18}.3.3^8}{2^9.3^9.2^{10}+2^{20}.3^{10}}\)
\(=\frac{2^{19}.3^9+2^{18}.3^9.5}{2^{19}.3^9+2^{20}.3^{10}}\)
=\(\frac{2^{18}.3^9\left(2+5\right)}{2^{19}.3^9\left(1+2.3\right)}\)
\(=\frac{2^{18}.3^9.7}{2^{19}.3^9.7}=\frac{1}{2}\)
Tính giá trị của các biểu thức sau:
a) \(A=\frac{5x2^{13}x4^{11}-16^9}{\left(3x2^{17}\right)^2}\)
b) \(B=\frac{2^{19}x27^3+15x4^9x9^4}{6^9x2^{10}+12^{10}}\)
a)\(A=\frac{5.2^{13}.2^{22}-2^{36}}{\left(3.2^{17}\right)^2}\)
\(A=\frac{5.2^{35}-2^{36}}{3^2.2^{34}}\)
\(A=\frac{2^{35}\left(5-2\right)}{3^2.2^{34}}\)
\(A=\frac{2.3}{3^2}=\frac{2}{3}\)
b) \(B=\frac{2^{19}.27^3+15.4^9.9^4}{6^9.2^{10}+12^{10}}\)
\(B=\frac{2^{19}.3^9+3.5.2^{18}.3^8}{2^9.3^9.2^{10}+2^{20}.3^{10}}\)
\(B=\frac{2^{18}.3^9\left(2+5\right)}{2^{19}.3^9\left(2+3\right)}\)
\(B=\frac{7}{2.5}=\frac{7}{10}\)
a) (\(\frac{-1}{2}\))3- (\(\frac{3}{4}\))3x(-2)2
b) 2x(-1)5+(\(\frac{3}{4}\))2-\(\frac{3}{8}\)
c) \(\frac{2^{19}x27^3+15x4^9x9^4}{6^9x2^{10}+12^{10}}\)
\(\dfrac{1+3+6+10+...+45+55}{1x10+2x9+3x8+...+9x2+10x1}\)
Mọi người bày tui cách giải bài này với. Nhanh nhé. Thanks 😘😘😘
(69x210+1210):(219x273+15x49x94) = ?