Question

a) \(512:2^5\)

b) \(\left(\frac{16}{81}\right)^3\)\(:\left(\frac{4}{9}\right)^2\)

c) \(\left(-\frac{1}{2}\right)^3\)\(:\left(\frac{-1}{2^{ }}\right)^2\)

d) \(256:2^4\)

giải giúp tui, trước 6h tối nay, cậu nào đúng thì tui T I C K:))

Answer 1

a. 512 : 2⁵

= 512 : 32

= 16

Answer 2

512 : 2^5 

= 512 : 32 

= 16 

Answer 3

a, \(512:2^5=2^9:2^5=2^4\)

b, \(\left(\frac{16}{81}\right)^3:\left(\frac{4}{9}\right)^2=\left(\frac{4}{9}\right)^5:\left(\frac{4}{9}\right)^2=\left(\frac{4}{9}\right)^3\)

c, \(\left(-\frac{1}{2}\right)^3:\left(-\frac{1}{2}\right)^2=-\frac{1}{2}\)

d, \(256:2^4=2^6:2^4=2^2\)

Answer 4

b 

\(\left(\frac{16}{81}\right)^3:\left(\frac{4}{9}\right)^2\)   

\(=\left(\frac{16}{81}\right)^3:\frac{16}{81}\)   

\(=\left(\frac{16}{81}\right)^2=\frac{256}{6561}\)

Answer 5

c 

\(\left(-\frac{1}{2}\right)^3:\left(-\frac{1}{2}\right)^2\)   

= -1/2 

Answer 6

d 

256 : 2^4 

= 256 : 16 

= 16

Answer 7

b. \(\left(\frac{16}{81}\right)^3\): \(\left(\frac{4}{9}\right)^2\)

= \(\left(\frac{4}{9}^2\right)^3\): \(\left(\frac{4}{9}\right)^2\)

= \(\left(\frac{4}{9}\right)^6\): \(\left(\frac{4}{9}\right)^2\)

= \(\left(\frac{4}{9}\right)^4\)

Answer 8

c. \(\left(-\frac{1}{2}\right)^3\): \(\left(\frac{-1}{2}\right)^2\)

= \(-\frac{1}{2}\)