\(\dfrac{2^4.3^5}{2^3.3^6}=\dfrac{2.2^3.3^5}{2^3.3^5.3}=\dfrac{2}{3}\)
\(\dfrac{2^4.3^5}{2^3.3^6}=\dfrac{2.2^3.3^5}{2^3.3^5.3}=\dfrac{2}{3}\)
rút gọn các phân số sau
\(\dfrac{2.\left(-13\right).9.10}{\left(-3\right).4.\left(-5\right).26}\)
\(\dfrac{2^2.2^3.5^7}{2^3.3^4.5^6}\)
rút gọn phân số ;\(\dfrac{2^3.3^4}{2^2.3^2.5}\)
Rút gọn \(\dfrac{2^3.3^3}{2^4.3^2}\) ta được.
Thu gọn :
A = \(\frac{2^4.3^3+2^3.3^4}{2^5.3^3-2^4.3^2}\)
Tính
a) 2/5 * 60/4 - 3/5 * 7 * 3/2
b) 5/3 * 3.3/2 * 4/5 -1
c) 5/6 * 3/7 - 2/7 * 1/6
Rút gọn :
A = \(\frac{2^3+3^2-5^2}{5^2-3^2+2^3}\)
B = \(\frac{2^3.3^2-3^2.4^2}{3^2.4^3-2^5.3^4}\)
a)E=1+3+6+...+5050
b)F=6+16+30+...+2040
c)G=2+5+9+...+10300;d)n!=1.2.3. ... .n-Rút gọn A=1.1!+2.2!+3.3!+....+n.n
tính :
a) (2^2+1).(2^2-1).(2^4-4^2)
b) (7^3+7^5).(5^4+5^6).(3^3.3-9^2)
2^2.4^4.2^6.2.2=
2.2^3.2^7.2^4=
3^2.3=
3^4.3^3.3=
3.3^5.3^4.3^2=
3.3^6.3^7.3^4=
4.4^3=
4^5.4.4^7=
4.4^3.4^5.4^6=
5.5^6
5.5^4=
5.5^2.5^4=
5.5^3.5^4.5^6=
5.5^6.5^4.5^3=
x.x^2
x.x^3.x^5=
a.a^4
a.a^2.a^4.a^5.a^7=
a.a^3.a^5.a^6
a^4.a.a^5.a^6.a=
x.x^3.x^4=
x^5.x^4.x.x^7.x^6=
7.7^2=
7.7^2.7^4.7^5=
7^3.7^5.7.7^4=
7^2.7.7^6.7^6.7^3=
10.10^2=
10.10^2=
10.100.10^3=
10.100.10^4.1000=
10^2.10^4.100.1000=