MỌI NGƯỜI ƠI , GIÚP MIK BÀI NÀY VỚI
Thu gọn : G = \(\frac{21^2.14.125}{35^5.6}\)Thu gọn : H = \(\frac{45^3.20^4.18^2}{180^5}\)Tính : B = \(3-3^2+3^3-...-3^{100}\)Tính : D = \(2.\left(3+3^2+3^3+...+3^{2005}\right)+3\)Tính giá trị của các biểu thức:
G=21^2.14.125/35^5.6
H= 45^3.20^4.18^2/180^5
HELP ME
G=(212.14.125):355.6
=\(\frac{\left(3.7\right)^2.7.2.5^{^3}}{\left(7.5\right)^5.2.3}\)=\(\frac{3^2.7^2.7.5^3}{7^5.5^5.3}\)=\(\frac{3}{7^2.5^2}\)=\(\frac{3}{49.25}\)=\(\frac{3}{1225}\)
\(G=\frac{21^2.14.125}{35^5.6}\)
\(G=\frac{\left(3.7\right)^2.7.2.5^3}{\left(7.5\right)^5.2.3}=\frac{3}{7^2.5^2}=\frac{3}{49.25}=\frac{3}{1225}\)
rút gọn phân số
a)\(\dfrac{4^6.3^4.9^5}{6^{12}}\)
b)\(\dfrac{21^2.14.125}{35^2.6}\)
c)\(\dfrac{45^3.20^4.18^2}{180^5}\)
d)\(\dfrac{2^{13}+2^5}{2^{10}+2^2}\)
a: \(=\dfrac{2^{12}\cdot3^{14}}{3^{12}\cdot2^{12}}=3^2=9\)
b: \(=\dfrac{7^3\cdot2\cdot5^3}{5^2\cdot7^2\cdot6}=7\cdot5\cdot\dfrac{1}{3}=\dfrac{35}{3}\)
d: =2^5(2^8+1)/2^2(2^8+1)=2^3=8
c: \(=\dfrac{5^3\cdot3^6\cdot2^8\cdot5^4\cdot3^4\cdot2^2}{2^{10}\cdot3^{10}\cdot5^5}=5^2\)
Tính giá trị của các biểu thức :
a , A = \(\frac{2^{10}.13+2^{10}.65}{2^8.104}\)
b , B = \(\frac{4^9.36+64^4}{16^4.100}\)
c , C = \(\frac{72^3.54^2}{108^4}\)
d , D = \(\frac{4^6.3^4.9^5}{6^{12}}\)
e , E = \(\frac{2^{13}+2^5}{2^{10}+2^2}\)
f , F = \(\frac{21^2.14.125}{35^5.6}\)
g , G = \(\frac{45^3.20^4.18^2}{180^5}\)
h , H = \(\frac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
mấy bn lm giúp mk nha , mk tk cho 3 tk
tính giá trị biểu thức nhanh nhất:
a) \(\frac{21^2.14.125}{35^3.6}\)
b) \(\frac{45^3...20^4.18^2}{180^5}\)
Mình ko kẻ được kẻ ngang nên làm như thế này còn nếu bn chép lại thì dấu chia cứ thay bằng dấu kẻ ngang là được
Ta có :
453⋅204⋅182:1805
=53⋅93⋅44⋅54⋅92⋅22:(55⋅95⋅45)
=57⋅95⋅44⋅4:(55⋅95⋅45)
=57⋅95⋅45:(55⋅95⋅45)
a) 38 : 34 + 22 . 23 b) 3.42-2.32 c) \(\frac{4^6.3^4.9^5}{6^{12}}\) d) \(\frac{21^2.14.125}{35^3.6}\) e) \(\frac{45^3.20^4.18^2}{180^5}\)g) \(\frac{2^{13}+2^5}{2^{10}+2^2}\)
Các bạn trình bày cách làm luôn nha. MK trân thành cản ơn
a)38:3^4+2^2.2^3=3^8-4+2^2+3=3^4+2^5=81+32=113
b)3.4^2-2.3^2=3(4^2-2.3)=3(16-6)=3.10=30
c)4^6.3^4.9^5/6^12=(2^2)^6.3^4.(3^2)^5/(2.3)^12=2^12.3^4.3^10/2^12.3^12=2^12.3^14/2^12.3^12=3^14/3^12=3^2=9
e)45^3.20^4.18^2/180^5=(5.3^2)^3.(2^2.5)^4.(2.3^2)^2/(2^2.3^2.5)^5=5^3.3^6.2^8.5^4.2^2.3^4/2^10.3^10.5^5=5^9.3^10.2^10/2^10.3^10.5^5
=5^4/1=5^4=625
d)21^2.14.125/35^3.6=(2.7)^2.2.7.5^3/(5.7)^3.2.3=2^2.7^2.2.7.5^3/5^3.7^3.2.3=2^3.7^3.5^3/5^3.7^3.2.3=2^3/2.3=8/6=4/3
g)2^13+2^5/2^10+2^2=2^5(2^8+1)/2^2(2^8+1)=2^5/2^2=32/4=8
Chúc bạn học tốt !!!!
Tính giá trị biểu thức :
C = \(\frac{21^2.14.125}{35^3.6}\)
D = \(\frac{45^3.20^4.18^2}{180^5}\)
\(C=\frac{21^2.14.125}{35^3.6}\)
\(C=\frac{\left(3.7\right)^2.2.7.5^3}{\left(5.7\right)^3.2.3}\)
\(C=\frac{3^2.7^2.2.7.5^3}{5^3.7^3.2.3}\)
\(C=\frac{3^2.7^3.2.5^3}{5^3.7^3.2.3}=3\)
\(D=\frac{45^3.20^4.18^2}{180^5}\)
\(D=\frac{\left(5.3^2\right)^3.\left(2^2.5\right)^4.\left(2.3^2\right)^2}{\left(2^2.3^2.5\right)^5}\)
\(D=\frac{5^3.3^6.2^8.5^4.2^2.3^4}{2^{10}.3^{10}.5^5}\)
\(D=\frac{5^7.3^{10}.2^{10}}{2^{10}.3^{10}.5^5}=5^2=25\)
D=\(\frac{2^{13}+2^5}{2^{10}+2^2}\)
B= \(\frac{2^2.14.125}{35^3.6}\)
C=\(\frac{45^3.20^4-18^2}{180^3}\)
B=\(\frac{2^2.14.125}{35^3.6}\)
B=\(\frac{2^2.2.7.5^3}{5^3.7^3.2.3}\)
B=\(\frac{2^3.7.5^3}{5^3.7^3.2.3}\)
B=\(\frac{2^2}{7^2.3}\)
=\(\frac{4}{49.3}\)=\(\frac{4}{147}\)
a) A= 2^10.13+2^10.65/2^8.104
b) B= 4^9.36+64^4/16^4.100
c) C= 72^3.54^2/108^4
d) D= 4^6.3^4.9^5/6^12
e) E= 2^13+2^5/2^10+2^2
f) F= 21^2.14.125/35^5.6
g) G= 45^3.20^4.18^2/180^5
h) H= 11.3^22.3^7-9^15/(2.3^14)^2
tính giá trị biểu thức :
38 : 34 + 22 . 23 b 3 . 42 - 2 . 32
c \(\dfrac{4^6.3^4.9^5}{6^{12}}\) d \(\dfrac{21^2.14.125}{35^3.6}\) e \(\dfrac{45^3.20^4.18^2}{180^5}\)
g \(\dfrac{2^{13}+2^5}{2^{10}+2^2}\)
Viết cách làm ra hộ mk nha. Bạn nào nhanh mk tick cho
a, =\(3^4+2^5=81+32=113\)
b, =\(3.\left(4^2-2.3\right)=3.\left(16-6\right)=3.10=30\)
c, =\(\dfrac{2^{12}.3^4.3^{10}}{2^{12}.3^{12}}=\dfrac{2^{12}.3^{14}}{2^{12}.3^{12}}=3^2=9\)
d, =\(\dfrac{3^2.7^2.2.7.5^3}{5^3.7^3.2.3}=3\)
e, =\(\dfrac{3^6.5^3.2^8.5^4.2^2.3^4}{2^{10}.3^{10}.5^5}=\dfrac{3^{10}.2^{10}.5^7}{2^{10}.3^{10}.5^5}=5^2=25\)
g, =\(\dfrac{2^5.\left(2^8+1\right)}{2^2.\left(2^8+1\right)}=\dfrac{2^5}{2^2}=2^3=8\)