Question

Rút gọn các biểu thức sau :

A = 3¹⁸ : 3¹⁵

B= \(\dfrac{2^{11}.9^2}{3^5.2^8}\)

 

Answer 1

A=3³=27
\(B=\dfrac{2^{11}.9^2}{3^5.2^8}=\dfrac{2^{11}.3^4}{3^5.2^8}=\dfrac{2^3}{3}=\dfrac{8}{3}\)

Answer 2

A=3^3=9

B=2^3/3^5=8/243

Answer 3

A=3^18:3^15=3^3

B=(2^11.3^4)/(3^5.2^8)

=2^3/3=8/3

Chúc bạn học tốt!

Answer 4

\(A=3^{18}:3^{15}=3^3=27\)

\(B=\dfrac{2^{11}\cdot9^2}{3^5\cdot2^8}=2^3\cdot\dfrac{3^4}{3^5}=\dfrac{8}{3}\)

Answer 5

1. A = 3¹⁸ : 3¹⁵

A = 3^{18 - 15}

A = 3³

A = 27

2. B = \(\dfrac{2^{11}.9^2}{3^5.2^8}\)

B = \(\dfrac{2^{11}.3^4}{3^5.2^8}\)

B = \(\dfrac{2^3.1}{3.1}\)

B = \(\dfrac{8}{3}\)

Answer 6

CẢM ƠN MN 🤩