Rút gọn biểu thức B=\(\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
Rút gọn biểu thức: B= \(\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
Rút gọn biểu thức:
M = \(\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
N = \(\frac{1^{2015}+2^{2015}+3^{2015}+....+10^{2015}}{2^{2015}+4^{2015}+6^{2015}+....+20^{2015}}\)
Tính : \(A=\frac{2,5-4\left(\frac{5}{2}-1,2\right)+\frac{3}{8}}{4\left(\frac{5}{2}-1,2\right)-\frac{3}{5}:\frac{2}{5}}-\frac{55}{148}\)
Rút gọn \(B=\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
rút gọn biểu thức 3 mũ 9 - 2 mũ 3. 3 mũ 7 +2 mũ 10 .3 mũ 2 - 2 mũ 13 / 3 mũ 10 - 2 mũ 2 . 3 mũ 7 + 2 mũ 10 . 3 mũ 2 - 2 mũ 12
\(\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^2-2^{12}}\)\(=\frac{2-2}{3}\)\(=\frac{0}{3}=0\)
bạn có thể ko giải tóm tắt được ko mình ko hiểu
3^9-2^3.3^7+2^10.3^2-2^13/3^10-2^2.3^7+2^10.3^2-2^12
Rút gọn\(A=-\frac{3^9+2^3\times3^7-2^{10}-3^2+2^{13}}{2^2\times3^7-3^{10}+2^{12}-2^{10}-3^{13}}\)
Tính A :
\(A=\dfrac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
Giúp mình với!!!!!!!!
Ta có :
\(A=\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
\(A=\frac{3^7\left(3^2-2^3\right)+2^{10}\left(3^2-2^3\right)}{3^7\left(3^3-2^2\right)+2^{10}\left(3^3-2^2\right)}\)
\(A=\frac{\left(3^2-2^3\right)\left(3^7+2^{10}\right)}{\left(3^3-2^2\right)\left(3^7+2^{10}\right)}\)
\(A=\frac{3^2-2^3}{3^3-2^2}\)
\(A=\frac{9-8}{27-4}\)
\(A=\frac{1}{23}\)
Vậy \(A=\frac{1}{23}\)
Chúc bạn học tốt ~
a,\(\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3}\)
b,\(\left(-2\frac{1}{3}\right)^{100}.\left(-0,5\right)^{99}:\left(\frac{7}{3}\right)^{98}:\left(\frac{1}{4}\right)^{50}\)
mk doan la` de sai, sua: \(\frac{3^9-2^3.3^7+2^{10}.3^2-2^{13}}{3^{10}-2^2.3^7+2^{10}.3^3-2^{12}}\)
\(=\frac{3^7.\left(3^2-2^3\right)+2^{10}.\left(3^2-2^3\right)}{3^7.\left(3^3-2^2\right)+2^{10}.\left(3^3-2^2\right)}=\frac{3^7+2^{10}}{\left(3^7+2^{10}\right).24}=\frac{1}{24}\)
rút gọn biểu thức 3 mũ 9 - 2 mũ 3. 3 mũ 7 +2 mũ 10 .3 mũ 2 - 2 mũ 13 / 3 mũ 10 - 2 mũ 2 . 3 mũ 7 + 2 mũ 10 . 3 mũ 2 - 2 mũ 12 trả lời nhanh giúp minh nhé
1 mũ 3= 3 mũ ko biết