CHO 0 A 1,B0. CÂU NÀO ĐÚNG A. LOGAA B A3   1 3LOGAB. B. LOGA...

Câu 25: Cho

0

 

a

1,

b



0

. Câu nào đúng

A.

^log

^a



^{a b a}

³

^



^{ }

^{1 3log}

^a

^b

^.

^B.

^log

^a



^a

²

^

^{a b}

²

²



^{ }

^{2 log 1}

^a



^

^b

²



^.

C.

^log

a



a b





 

^{1 log}

a

b

^.

D.

^log

^a



^a

⁴

^

^b



^{ }

^{4 log}

^a

^b

^.