Question

Tính:

27 mũ 2 chia 25 mũ 3

Answer 1

=0,046656

Answer 2

Trả lời : 

\(\frac{27^2}{25^3}\)

\(=\frac{729}{15625}\)

\(=0,46656\)

Answer 3

27^2 : 25^3 = 0,046656

Hk tốt :3

Answer 4

27^2=3^3^2=3^6

25^3=5^2^3=5^6

3^6/5^6=(3/5)^6

Answer 5

\(27^2:25^3=\left(3^3\right)^2:\left(5^2\right)^3\)

\(=3^6:5^6=\frac{3^6}{5^6}\)

\(=\left(\frac{3}{5}\right)^6\)

Answer 6

\(27^2:25^3=\)729:15625=0,046656

Answer 7

27² : 25³

= 729:1625

=0,046656

Answer 8

\(27^2:25^3=\left(3^3\right)^2:\left(5^2\right)^3=3^{3.2}:5^{2.3}=3^6:5^6=\left(\frac{3}{5}\right)^6\)