6^3+3.6^2+3^5/-13
a) \(\dfrac{6^3+3.6^2+3^3}{-13}\)
b) \(\dfrac{5^4.20^4}{24^5.4^5}\)
Câu 2: Tính
C = \(\dfrac{6^3+3.6^2+3^3}{13}\)
D = \(\dfrac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
\(C=\dfrac{6^3+3\cdot6^2+3^3}{13}=\dfrac{3^3\cdot8+3^3\cdot4+3^3}{13}=27\)
BÀI 2 TÍNH :
A = \(\dfrac{6^3+3.6^2+3^3}{13}\)
B = \(\dfrac{4^6.9^5+6^9.120}{8^4-3^{12}.6^{11}}\)
\(A=\dfrac{6^3+3\cdot6^2+3^3}{13}\)
\(=\dfrac{3^3\cdot8+3^3\cdot4+3^3}{13}\)
=27
tính
a,7 5/11-(2 3/7 + 3 5/11)
b,(-3)/5. 5/7 + (-3)/5. 3/7+ (-3)/5. 6/7
c,1/3.4/5+1/3.6/5-4/3
d,5/9 . 7/13 + 5/9 . 13 - 5/9 . 3/13
a: =7+5/11-2-3/7-3-5/11
=2-3/7=11/7
b: =-3/5(5/7+3/7+6/7)
=-3/5*2=-6/5
c: =1/3(4/5+6/5)-4/3
=2/3-4/3=-2/3
d: =5/9(7/13+13-3/13)
=5/9*165/13=275/39
Tính giá trị biểu thức: 20^5.5^10/100^5. b)(0.9)^5/(0.3)^6. c)6^3+3.6^2+3^3/-13.
Tính giá trị của biểu thức: 20^5.5^10/100^5. b)(0.9)^5/(0.3)^6. c)6^3+3.6^2+3^3/-13.
Tính hợp lí nếu có thể
b) \(\dfrac{6^3+3.6^2+3^3}{-13}\)
a) \(\dfrac{20^5.5^{10}}{100^5}\)
b:\(=\dfrac{3^3\cdot2^3+3\cdot2^2\cdot3^2+3^3}{-13}=\dfrac{3^3\left(2^3+2^2+1\right)}{-13}=-3^3=-27\)
a: \(=\dfrac{5^5\cdot4^5\cdot5^{10}}{10^{20}}=\dfrac{5^{15}\cdot2^{10}}{5^{20}\cdot2^{20}}=\dfrac{1}{5^5\cdot2^{10}}\)
b) \(\dfrac{6^3+3.6^2+3^3}{-13}=\dfrac{2^3.3^3+3.3^2.2^2+3^3}{-13}=\dfrac{3^3\left(2^3+2^2+1\right)}{-13}\)
\(=\dfrac{3^3.\left(8+4+1\right)}{-13}=\dfrac{3^3.13}{-13}=\dfrac{27}{-1}=-27\)
a)\(\dfrac{20^5.5^{10}}{100^5}=\dfrac{20^5.5^{10}}{20^5.5^5}=\dfrac{5^5}{1}=3125\)
\(\dfrac{6^3+3.6^2+3^3}{-13}\)
=?
\(\dfrac{6^3+3\times6^2+3^3}{-13}=\dfrac{2^3\times3^3+3\times2^2\times3^2+3^3}{-13}\)
\(=\dfrac{2^3\times3^3+2^2\times3^3+3^3}{-13}=\dfrac{3^3\times\left(2^3+2^2+1\right)}{-13}\)
\(=\dfrac{3^3\times13}{-13}=-9\)
\(\dfrac{6^3+3\cdot6^2+3^3}{-13}\)
\(=\dfrac{216+3\cdot36+27}{-13}\)
\(=\dfrac{216+108+27}{-13}\)
\(=\dfrac{241}{-13}\)
\(\dfrac{6^3+3\times6^2+3^3}{-13}=\dfrac{2^3\times3^3+2^2\times3^3+3^3}{-13}=\dfrac{3^3\times\left(2^3+2^2+1\right)}{-13}=\dfrac{3^3\times13}{-13}=-27\)
6^3+3.6^2+3^3/-13
\(\frac{6^3+3.6^2+3^3}{-13}=\frac{2^3.3^3+3.3^2.2^2+3^3}{-13}=\frac{3^3\left(2^3+2^2+1\right)}{-1.13}=\frac{27.13}{-1.13}=-27\)