Question

(1)將log₂32=5化成指數(shù)式；

(2)將3^－3=化成對(duì)數(shù)式；

(3)已知log₄x=－,求x；

(4)已知log₂(log₃x)=1,求x.

Answer 1

解:(1)2⁵=32.

(2)log₃=－3.

(3)∵log₄x=－,∴x=4=2^－3=.

(4)∵log₂(log₃x)=1,∴l(xiāng)og₃x=2¹.

∴x=3²=9.