\(\dfrac{3^{11}.11+3^{11}.21}{3^9.2^5}\)
= \(\dfrac{3^{11}.\left(11+21\right)}{3^932}\)
= \(\dfrac{3^{11}32}{3^9.32}\)
= 32
= 9
Tính giá trị của biểu thức:
P=3^11.11+3^11.21/3^9.2^5
3/5.11+5/11.21+7/21.35+9/35.53
chứng tỏ: 3/5.11 + 5/11.21 + 7/21.35 + 9/35.53 < 1
3/5.11+3/11.21+7/21.35+9/35.53
CMR 3/5.11+5/11.21+7/21.35+9/35.53<1
Giải Nhanh Hộ Mình Cái
a) -7/5+8/13+-3/5+5/13 b) 5/4+9/11.11/12 c) 1/2.8/17+1/2.2/17+1/2.7/17
A=\(\dfrac{3^{10}.11+3^{10}.5}{3^9.2^4}\)
tinh nhanh : P = ( 5 . 3^21 +4.3^12):(3^9.5^2-3^9.2^3)
Tính:
(\(2^2.5.3^3-5^2.2^3+20\)) \(3^2-10\)
\(\left(3^{10}.11+3^{10}.5\right)\left(3^9.2^4\right)\)