Question

Tính

a)3\(^2\)x\(\frac{1}{243}\)x81²x\(\frac{1}{3^3}\)

giúp mình nhanh nha
 

Answer 1

\(3^2\times\frac{1}{243}\times81^2\times\frac{1}{3^3}\)

Ta có :

\(=9\times\frac{1}{243}\times6561\times\frac{1}{27}\)

\(=\frac{1}{27}\times6561\times\frac{1}{27}\)

\(=243\times\frac{1}{27}\)

\(=9\)

ủng hộ mik nhé .

Answer 2

\(3^2.\frac{1}{243}.81^2.\frac{1}{3^3}\)

\(=3^2.\frac{1}{3^5}.\left(3^4\right)^2.\frac{1}{3^3}\)

\(=3^2.\frac{1}{3^5}.3^8.\frac{1}{3^3}\)

\(=3^2.3^8.\frac{1}{3^5}.\frac{1}{3^3}\)

\(=3^{10}.\frac{1}{3^8}\)

tíc mình nha