Question

so sánh

5²³ và 6.5²²

7.2¹³ và 2¹⁶

 

Answer 1

ta có 6.5^22=6/5.5.5^22=6/5.5^23

vậy 6/5.5^23>5^23 hay 6.5^22>5^23

Answer 2

ta có 2^16=2^13.2^3=2^13.8

vì 8.7 nên 2^16 .> 2^13.7

Answer 3

a) 5^23 = 5^22 . 5

Mà 5 < 6 nên 5^23 < 6 . 5^22

b) 2^16 = 2^13 . 2^3 = 2^13 . 8

Mà 7 < 8 nên 7 . 2^13 < 2^16.

Answer 4

\(taco\): \(5^{23}=5.5^{22}\)

\(6.5^{22}\)giữ nguyên

vậy \(5^{23}< 6.5^{22}\)

\(7.2^{13}\)giữ nguyên

\(2^{16}=2^{13}.8\)

\(\Rightarrow2^{16}>7.2^{13}\)