(1/6)^2 . 6^2 + (0,6)^5/ (0,2)^6
(1/6)^2 . 6^2 + (0,6)^5/ (0,2)^6
\(=\left(\dfrac{1}{6}\cdot6\right)^2+\dfrac{0.2^5\cdot0.3^5}{0.2^5\cdot0.2}\)
\(=1+\dfrac{0.3^5}{0.2}\)
\(=1+\dfrac{243}{20000}=\dfrac{20243}{20000}\)
a) \(\dfrac{2^7.9^3}{6^5.8^2}\)
b) \(\dfrac{\left(0,6\right)^5}{\left(0,2\right)^6}\)
a) \(\dfrac{2^7.9^3}{6^5.8^2}=\dfrac{2^7.\left(3^2\right)^3}{\left(2.3\right)^5.\left(2^3\right)^2}=\dfrac{2^7.3^6}{2^5.3^5.2^6}=\dfrac{3}{2^4}=\dfrac{3}{16}\)
a) \(\dfrac{2^7.9^3}{6^5.8^2}=\dfrac{2^7.\left(3^2\right)^3}{\left(2.3\right)^5.\left(2^3\right)^2}=\dfrac{2^7.3^6}{2^5.3^5.2^6}=\dfrac{2^7.3^6}{2^{11}.3^5}=\dfrac{3}{2^4}=\dfrac{3}{16}\)
b) \(\dfrac{\left(0,6\right)^5}{\left(0,2\right)^6}=\dfrac{\left(0,2.3\right)^5}{\left(0,2\right)^6}=\dfrac{\left(0,2\right)^5.3^5}{\left(0,2\right)^6}=\dfrac{3^5}{0,2}=1215\)
a) 4^2×4^3/2^10 b) (0,6)^5/(0,2)^6 c) 2^7×9^3/6^5×8^2 d) 6^3+3×6^2+3^3/-13
tìm giá trị của các biểu thức sau:luu ý dấu / là phần chứ k phải chia
a. (0,6)^5/(0,2)^6
b. 2^7.9^3/6^5.8^2
c. 6^3+3.6^2+3^3
(0,6)^5/(0,2)^6
Tính:
\(\left(\frac{1}{6}\right)^2.6^2+\frac{\left(0,6\right)^5}{\left(0,2\right)^6}\)
AI LÀM NHANH, NGẮN GỌN VÀ CHÍNH XÁC NHẤT THÌ MÌNH SẼ TÍCH CHO
( 1 / 6 )2 . 62 + ( 0,6 ) 5 / ( 0 , 2 ) 6
= 1 + 35 . (0 , 2)5 / 0,2 . ( 0, 2 )5
=1 + 35 / 0, 2
= 1 + 243 : 2 / 10
= 1 + 1215
= 1216
tính giá trị của các biểu thức sau:
a)( 4^2 . 4^3) : 2^10
b) (0,6)^5 : (0,2)^6
c) (2^7 . 9^3) : ( 6^5 . 8^2 )
AI GIẢI ĐÚNG VÀ CHI TIẾT MÌNH TÍCH CHO
\(a\)) \(\left(4^2.4^3\right):2^{10}\)
\(=4^5:2^{10}\)
\(=\left(2^2\right)^5:2^{10}\)
\(=2^{10}:2^{10}\)
\(=1\)
\(b\)) \(\left(0,6\right)^5:\left(0,2\right)^6\)
\(=\left(\frac{3}{5}\right)^5:\left(\frac{1}{5}\right)^6\)
\(=\frac{3^5}{5^5}:\frac{1^6}{5^6}\)
\(=\frac{3^5}{5^5}.5^6\)
\(=\frac{3^5.5^6}{5^5}\)
\(=3^5.5\)
\(=243.5\)
\(=1215\)
\(c\)) \(\left(2^7.9^3\right):\left(6^5.8^2\right)\)
\(=\left[2^7.\left(3^2\right)^3\right]:\left[\left(2.3\right)^5.\left(2^4\right)^2\right]\)
\(=\left(2^7.3^6\right):\left[2^5.3^5.2^8\right]\)
\(=\left(2^7.3^6\right).\left(\frac{1}{2^5.3^5.2^8}\right)\)
\(=\frac{2^7.3^6.1}{\left(2^5.2^8\right).3^5}\)
\(=\frac{2^7.3^6}{2^{13}.3^5}\)
\(=\frac{3}{2^6}\)
\(=\frac{3}{64}\)
Giúp mình nhak các friends. Mình mơn nhiều
\(\frac{\left(0,6\right)^5}{\left(0,2\right)^6}=........................\\\frac{6^3+3\cdot6^2+3^3}{-13}=...................... \)
Bài 1:
a) \(\frac{\left(0,6\right)^5}{\left(0,2\right)^6}\)
b) \(\frac{2^7.9^3}{6^5.8^2}\)
c) \(\frac{3^3+3.6^2+3^3}{-13}\)
\(\frac{\left(0,6\right)^5}{\left(0,2\right)^6}=\frac{\left(0,6\right)^5}{\left(0,2\right)^5.0,2}=\left(\frac{0,6}{0,2}\right)^5.\frac{1}{\frac{1}{5}}=3^5.5=243.5=1215\)
\(\frac{2^7.9^3}{6^5.8^2}=\frac{2^7.\left(3^2\right)^3}{\left(2.3\right)^5.\left(2^3\right)^2}=\frac{2^7.3^6}{2^5.3^5.2^6}=\frac{2^7.3.3^5}{2^7.2^4.3^5}=\frac{3}{16}\)
\(\frac{6^3.3.6^2+3^3}{-13}=\frac{2^3.3^3+3.2^2.3^2+3^3}{-13}=\frac{3^3.\left(2^3+2^2+1\right)}{-13}=\frac{27.13}{-13}=-27\)