2^10.3^10-2^10.3^9/2^9.3^10
2^10.3^10-2^10.3^9/2^9.3^10
=2^10.3^9(3-1)/2^9.3^10
=2^11.3^9/2^9.3^10
=4/3
Rút gọn
2^10.3^10-2^10.3^9/2^9.3^10
Bài làm
\(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}\)
\(=\frac{2^{10}\left(3^{10}-3^9\right)}{2^9.3^{10}}\)
\(=\frac{2\left[3^9\left(3-1\right)\right]}{3^{10}}\)
\(=\frac{2\left[3^9.2\right]}{3^{10}}\)
\(=\frac{4.3^9}{3^{10}}\)
\(=\frac{4}{3}\)
Vậy giá tị biểu thức là \(\frac{4}{3}\)
rut gon phan so 2^10.3^10-2^10.3^9 /2^9.3^10
Phân số trên = 2^10.3^9.(3-1)/2^9.3^10
= 2^10.3^9.2/2^9.3^10
= 2^11.3^9/2^9.3^10
= 2^2/3 = 4/3
Tk mk nha
2^10.3^10-2^10.3^9/2^9.3^10hay rut gon
210.310-210.39 / 29.310 =210.(310-39) / 29.310
=210.3 / 29.310
=2 / 39
Rút gọn:
2 mũ 10.3 mũ 10-2 mũ 10.3 mũ 9/2 mũ 9.3 mũ 10
\(\frac{2^{10}\cdot3^{10}-2^{10}\cdot3^9}{2^9\cdot3^{10}}\)\(=\frac{2^{10}\cdot3^9\left(3-1\right)}{2^9\cdot3^{10}}\)\(=\frac{2\cdot2}{3}=\frac{4}{3}\)
Vậy \(\frac{2^{10}\cdot3^{10}-2^{10}\cdot3^9}{2^9\cdot3^{10}}=\frac{3}{4}\)
rút gọn:
-11^5.13^7/11^5.13^8
2^10.3^10-2^10.3^9/2^9.3^10
\(\frac{-11^5.13^7}{11^5.13^8}=\frac{\left(-1\right).11^5.13^7}{11^5.13^7.13}=\frac{-1}{13}\)
\(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.\left(3^{10}-3^9\right)}{2^9.3^{10}}=\frac{2^9.2.3^9.\left(3-1\right)}{2^9.3.3^9}=\frac{2.2}{3}=\frac{4}{3}\)
a, \(\frac{-11^5.13^7}{11^5.13^8}=\frac{-1}{13}\)
b, \(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.3^9.\left(1-3\right)}{2^9.3^{10}}=\frac{-4}{3}\)
A=2^10.3^10-2^10.3^9/2^9.3^10
B=5^11.7^12+7^11.5^11/5^12.7^12+9.5^11.7^11
a)2^10.3^10:2^10.3^9/2^9.3^10.
b)5^11.7^12+5^11.7^11/5^12.7^12+9.5^11.7^11
a,(2^10.3^10-2^10.3^9) : (2^9.3^10)
b,(11.3^22.3^7-9^15) : (2.3^14)^2
c,(5^11.7^12+5^11.7^12) : (5^12.7^11+9.5^11.7^11
. ((((^ là mũ)))))🍭