Bài 1: Thực hiện phép tínha) 3 2 . \(\frac{1}{243}\).81 2 . 3 -3b) \(\frac{\left(-3\right)^{10}.15^5}{25^3.\left(-9\right)^7}\)c)2 3 + 3.\(\left(\frac{1}{3}\right)^0\)-2 -2 . 4 + [(-2) 2 :\(\frac{1}{2}\)].8d) \(\left(\frac{-3}{4}\right)^4:\left(\frac{-9}{8}\right)^4\)e) \(\left(\frac{-31}{8}\right)^3.\left(\frac{-32}{31}\right)^4\)f) \(\left(-\frac{3}{4}\right)^5.\left(\frac{16}{9}\right)^5\)Ai làm nhanh nhất mình tick...
Đọc tiếp
Bài 1: Thực hiện phép tính
a) 3 2 . \(\frac{1}{243}\).81 2 . 3 -3
b) \(\frac{\left(-3\right)^{10}.15^5}{25^3.\left(-9\right)^7}\)
c)2 3 + 3.\(\left(\frac{1}{3}\right)^0\)-2 -2 . 4 + [(-2) 2 :\(\frac{1}{2}\)].8
d) \(\left(\frac{-3}{4}\right)^4:\left(\frac{-9}{8}\right)^4\)
e) \(\left(\frac{-31}{8}\right)^3.\left(\frac{-32}{31}\right)^4\)
f) \(\left(-\frac{3}{4}\right)^5.\left(\frac{16}{9}\right)^5\)
Ai làm nhanh nhất mình tick cho
Bây giờ tạm gọi các biểu thức ở mỗi bài lần lượt là A;B;C;...
a/\(A=3^2.\frac{1}{3^5}.3^8.\frac{1}{3^3}=3^2=9\)
b/\(B=\frac{3^{10}.3^5.5^5}{-5^6.3^{14}}=\frac{-3}{5}\)
c/\(C=2^3+3.1-\frac{1}{2^2}.2^2+\frac{2^2}{2}.2^3=8+3-1+16=26\)
d/\(D=\frac{3^4}{2^8}.\frac{2^{12}}{3^8}=\frac{2^4}{3^4}=\frac{16}{81}\)
e/\(E=\frac{-31^3}{2^9}.\frac{2^{20}}{31^4}=\frac{-2^{11}}{31}=\frac{-2048}{31}\)
f/\(F=\frac{-3^5}{2^{10}}.\frac{2^{20}}{3^{10}}=\frac{-2^{10}}{3^5}=\frac{-1024}{243}\)